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Author Grunseit, A.C.; Chau, J.Y.; Rangul, V.; Holmen, T.L.; Bauman, A. url  doi
  Title Patterns of sitting and mortality in the Nord-Trondelag health study (HUNT) Type Journal Article
  Year 2017 Publication The International Journal of Behavioral Nutrition and Physical Activity Abbreviated Journal Int J Behav Nutr Phys Act  
  Volume 14 Issue (up) 1 Pages 8  
  Keywords Adult; Aged; Cardiovascular Diseases/*mortality; *Cause of Death; *Exercise; Female; Humans; Male; Middle Aged; *Posture; Proportional Hazards Models; Prospective Studies; Risk Factors; *Sedentary Lifestyle; Self Report; Young Adult; *Cardiovascular disease; *Epidemiology; *Mortality; *Sedentary behaviour  
  Abstract BACKGROUND: Current evidence concerning sedentary behaviour and mortality risk has used single time point assessments of sitting. Little is known about how changes in sitting levels over time affect subsequent mortality risk. AIM: To examine the associations between patterns of sitting time assessed at two time points 11 years apart and risk of all-cause and cardio-metabolic disease mortality. METHODS: Participants were 25,651 adults aged > =20 years old from the Nord-Trondelag Health Study with self-reported total sitting time in 1995-1997 (HUNT2) and 2006-2008 (HUNT3). Four categories characterised patterns of sitting: (1) low at HUNT2/ low at HUNT3, 'consistently low sitting'; (2) low at HUNT2/high at HUNT3, 'increased sitting'; (3) high at HUNT2/low at HUNT3, 'reduced sitting'; and (4) high at HUNT2 /high at HUNT3, 'consistently high sitting'. Associations of sitting pattern with all-cause and cardio-metabolic disease mortality were analysed using Cox regression adjusted for confounders. RESULTS: Mean follow-up was 6.2 years (158880 person-years); 1212 participants died. Compared to 'consistently low sitting', adjusted hazard ratios for all-cause mortality were 1.51 (95% CI: 1.28-2.78), 1.03 (95% CI: 0.88-1.20), and 1.26 (95% CI: 1.06-1.51) for 'increased sitting', 'reduced sitting' and 'consistently high sitting' respectively. CONCLUSIONS: Examining patterns of sitting over time augments single time-point analyses of risk exposures associated with high sitting time. Whilst sitting habits can be stable over a long period, life events (e.g., changing jobs, retiring or illness) may influence sitting trajectories and therefore sitting-attributable risk. Reducing sitting may yield mortality risks comparable to a stable low-sitting pattern.  
  Address Department of Public health and General practice, HUNT Research Centre, Faculty of Medicine, NTNU – Norwegian University of Science and Technology, Levanger, Norway  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1479-5868 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:28122625; PMCID:PMC5267382 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 1918  
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Author Gulati, A.M.; Hoff, M.; Salvesen, O.; Dhainaut, A.; Semb, A.G.; Kavanaugh, A.; Haugeberg, G. url  doi
  Title Bone mineral density in patients with psoriatic arthritis: data from the Nord-Trondelag Health Study 3 Type Journal Article
  Year 2017 Publication RMD Open Abbreviated Journal RMD Open  
  Volume 3 Issue (up) 1 Pages e000413  
  Keywords Psoriatic arthritis; bone mineral density; osteoporosis  
  Abstract BACKGROUND: The risk of osteoporosis in patients with psoriatic arthritis (PsA) remains unclear. The aim of this study was to compare bone mineral density (BMD) measured by dual-energy X-ray absorptiometry (DXA) in patients with PsA and controls. PATIENTS AND METHODS: Patients with PsA and controls were recruited from the Nord-Trondelag Health Study (HUNT) 3. RESULTS: Patients with PsA (n=69) and controls (n=11 703) were comparable in terms of age (56.8 vs 55.3 years, p=0.32), gender distribution (females 65.2% vs 64.3%, p=0.87) and postmenopausal status (75.6% vs 62.8%, p=0.08). Body mass index (BMI) was higher in patients with PsA compared with controls (28.5 vs 27.2 kg/m(2), p=0.01). After adjusting for potential confounding factors (including BMI), BMD was higher in patients with PsA compared with controls at lumbar spine 1-4 (1.213 vs 1.147 g/cm(2), p=0.003) and femoral neck (0.960 vs 0.926 g/cm(2), p=0.02), but not at total hip (1.013 vs 0.982 g/cm(2), p=0.11). Controls had significantly higher odds of having osteopenia or osteoporosis based on measurements of BMD in both the femoral neck (p=0.001), total hip (p=0.033) and lumbar spine (p=0.033). CONCLUSION: Our population-based data showed comparable BMD in patients with PsA and controls. This supports that the PsA population is not at increased risk of osteoporosis.  
  Address Department of Rheumatology, Martina Hansens Hospital, Brum, Norway  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2056-5933 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:28955483; PMCID:PMC5604602 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 1919  
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Author Halvorsen, S.; Ghanima, W.; Fride Tvete, I.; Hoxmark, C.; Falck, P.; Solli, O.; Jonasson, C. url  doi
  Title A nationwide registry study to compare bleeding rates in patients with atrial fibrillation being prescribed oral anticoagulants Type Journal Article
  Year 2017 Publication European Heart Journal. Cardiovascular Pharmacotherapy Abbreviated Journal Eur Heart J Cardiovasc Pharmacother  
  Volume 3 Issue (up) 1 Pages 28-36  
  Keywords Apixaban; Atrial fibrillation; Bleeding; Dabigatran; Non-vitamin K antagonist oral anticoagulants; Oral anticoagulants; Rivaroxaban; Warfarin  
  Abstract AIMS: We aimed to evaluate bleeding risk in clinical practice in patients with atrial fibrillation (AF) being prescribed dabigatran, rivaroxaban, or apixaban compared with warfarin. METHODS: Using nationwide registries (Norwegian Patient Registry and Norwegian Prescription Database), we identified AF patients with a first prescription of oral anticoagulants between January 2013 and June 2015. Patients were followed until discontinuation or switching of oral anticoagulants, death, or end of follow-up. The primary endpoint was major or clinically relevant non-major (CRNM) bleeding. RESULTS: In total 32 675 AF patients were identified (58% men, median age 74 years): 11 427 patients used warfarin, 7925 dabigatran, 6817 rivaroxaban, and 6506 apixaban. After a median follow-up of 173 days (25th, 75th percentile 84, 340), 2081 (6.37%) patients experienced a first major or CRNM bleeding. Using a Cox proportional hazard model adjusting for baseline characteristics, use of apixaban [hazard ratio (HR) 0.70, 95% confidence interval (CI) 0.61-0.80, P < 0.001] and dabigatran (HR 0.74, 95% CI 0.66-0.84, P < 0.001) were associated with a lower risk of major or CRNM bleeding compared with warfarin whereas use of rivaroxaban was not (HR: 1.05, 95% CI 0.94-1.17, P = 0.400). Use of dabigatran and rivaroxaban were associated with higher risk of gastrointestinal bleeding, whereas use of apixaban and dabigatran were associated with lower risk of intracranial bleeding, compared with warfarin. CONCLUSION: In this nationwide cohort study in AF patients, apixaban and dabigatran were associated with a lower risk of major or CRNM bleeding compared with warfarin. The risk of gastrointestinal bleeding was higher with rivaroxaban and dabigatran compared with warfarin.  
  Address HUNT Research Center, Faculty of Medicine, NTNU-Norwegian University of Science and Technology, Trondheim, Norway  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2055-6845 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:27680880; PMCID:PMC5216196 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 1920  
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Author Hellevik, A.I.; Johnsen, M.B.; Langhammer, A.; Fenstad, A.M.; Furnes, O.; Storheim, K.; Zwart, J.A.; Flugsrud, G.; Nordsletten, L. url  doi
  Title Incidence of total hip or knee replacement due to osteoarthritis in relation to thyroid function: a prospective cohort study (The Nord-Trondelag Health Study) Type Journal Article
  Year 2017 Publication BMC Musculoskeletal Disorders Abbreviated Journal BMC Musculoskelet Disord  
  Volume 18 Issue (up) 1 Pages 201  
  Keywords Hip joint replacement; Knee joint replacement; Osteoarthritis; Thyroid function; Thyroid stimulating hormone  
  Abstract BACKGROUND: To study whether thyroid function was associated with risk of hip or knee replacement due to primary osteoarthritis. METHODS: In a prospective cohort study, data from the second and third survey of the Nord-Trondelag Health Study were linked to the Norwegian Arthroplasty Register in order to identify total hip or knee replacement as a result of primary osteoarthritis. RESULTS: Among 37 891 participants without previously known thyroid disease we recorded 978 total hip replacements (THRs) and 538 total knee replacements (TKRs) during a median follow-up time of 15.7 years. The analyses were adjusted for sex, age, BMI (body mass index), smoking, physical activity and diabetes. We did not find any association between TSH (thyroid stimulating hormone) and THR or TKR due to osteoarthritis. Neither were changes in TSH over time, or overt hypo- or hyperthyroidism, associated with incidence of THR or TKR. CONCLUSION: No association was found between thyroid function and hip or knee joint replacement due to osteoarthritis.  
  Address Faculty of Medicine, University of Oslo, Oslo, Norway  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1471-2474 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:28521834; PMCID:PMC5437592 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 1924  
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Author Hjerkind, K.V.; Stenehjem, J.S.; Nilsen, T.I.L. url  doi
  Title Adiposity, physical activity and risk of diabetes mellitus: prospective data from the population-based HUNT study, Norway Type Journal Article
  Year 2017 Publication BMJ Open Abbreviated Journal BMJ Open  
  Volume 7 Issue (up) 1 Pages e013142  
  Keywords *Adiposity; Adult; Aged; Aged, 80 and over; Body Mass Index; Comorbidity; Diabetes Mellitus/*epidemiology; *Exercise; Female; Humans; Longitudinal Studies; Male; Middle Aged; Norway/epidemiology; Odds Ratio; Overweight/*epidemiology; Prospective Studies; Risk Factors; Young Adult; *Epidemiology; *Public Health  
  Abstract BACKGROUND: Physical activity may counteract the adverse effects of adiposity on cardiovascular mortality; however, the evidence of a similar effect on diabetes is sparse. This study examines whether physical activity may compensate for the adverse effect of adiposity on diabetes risk. METHODS: The study population consisted of 38 231 individuals aged 20 years or more who participated in two consecutive waves of the prospective longitudinal Nord-Trondelag Health Study in Norway: in 1984-1986 and in 1995-1997. A Poisson regression model with SEs derived from robust variance was used to estimate adjusted risk ratios of diabetes between categories of body mass index and physical activity. RESULTS: Risk of diabetes increased both with increasing body mass (Ptrend <0.001) and with decreasing physical activity level (Ptrend <0.001 in men and 0.01 in women). Combined analyses showed that men who were both obese and had low activity levels had a risk ratio of 17 (95% CI 9.52 to 30) compared to men who were normal weight and highly active, whereas obese men who reported high activity had a risk ratio of 13 (95% CI 6.92 to 26). Corresponding analysis in obese women produced risk ratios of 15 (95% CI 9.18 to 25) and 13 (95% CI 7.42 to 21) among women reporting low and high activity levels, respectively. CONCLUSIONS: This study shows that overweight and obesity are associated with a substantially increased risk of diabetes, particularly among those who also reported being physically inactive. High levels of physical activity were associated with a lower risk of diabetes within all categories of body mass index, but there was no clear evidence that being physically active could entirely compensate for the adverse effect of adiposity on diabetes risk.  
  Address Cancer Registry of Norway, Institute of Population-based Cancer Research, Oslo, Norway  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2044-6055 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:28093432; PMCID:PMC5253523 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 1929  
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Author Jorgensen, P.; Langhammer, A.; Krokstad, S.; Forsmo, S. url  doi
  Title Mortality in persons with undetected and diagnosed hypertension, type 2 diabetes, and hypothyroidism, compared with persons without corresponding disease – a prospective cohort study; The HUNT Study, Norway Type Journal Article
  Year 2017 Publication BMC Family Practice Abbreviated Journal BMC Fam Pract  
  Volume 18 Issue (up) 1 Pages 98  
  Keywords Chronic disease; Diabetes; Hypertension; Primary care; Public health; Thyroid disorders  
  Abstract BACKGROUND: Suggested strategies in reducing the impact of non-communicable diseases (NCD) are early diagnosing and screening. We have limited proof of benefit of population screening for NCD. Increased mortality in persons with diagnosed NCD has been shown for decades. However, mortality in undetected NCD has barely been studied. This paper explores whether all-cause mortality differed between persons with diagnosed hypothyroidism, type 2 diabetes (T2DM), and hypertension, compared with persons with undetected-, and with persons without the corresponding disease. METHODS: A prospective cohort study of the general population in Nord-Trondelag, Norway. Persons >/=20 years at baseline 1995-97 were followed until death or June 15, 2016. Cox proportional hazards models were used to compute age and multiple adjusted hazard ratios (HR) with 95% confidence intervals (CI) for the association between disease status and all-cause mortality. The number of participants in the hypothyroidism study was 31,960, in the T2DM study 37,957, and in the hypertension study 63,371. RESULTS: Mortality was increased in persons with diagnosed type 2 diabetes and hypertension, compared to persons without corresponding disease; HR 1.69 (95% CI 1.55-1.84) and HR 1.23 (95% CI 1.09-1.39), respectively. Among persons with undetected T2DM, the HR was 1.21 (95% CI 1.08-1.37), whilst among undetected hypothyroidism and hypertension, mortality was not increased compared with persons without the diseases. Further, the association with mortality was stronger in persons with long duration of T2DM (HR 1.96 (95% CI 1.57-2.44)) and hypertension (HR 1.32 (95% CI 1.17-1.49)), compared with persons with short duration (HR 1.29 (1.09-1.53) and HR 1.16 (1.03-1-30) respectively). CONCLUSIONS: Mortality was increased in persons with diagnosed T2DM and hypertension, and in undetected T2DM, compared with persons without the diseases. The strength of the association with mortality in undetected T2DM was however lower compared with persons with diagnosed T2DM, and mortality was not increased in persons with undetected hypothyroidism and hypertension, compared with persons without the diseases. Thus, future research needs to test more thoroughly if early diagnosing of these diseases, such as general population screening, is beneficial for health.  
  Address Department of Public Health and Nursing, NTNU, Norwegian University of Science and Technology, Postbox 8905, 7491, Trondheim, Norway  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1471-2296 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:29212453; PMCID:PMC5719734 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 1935  
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Author Krokstad, S.; Ding, D.; Grunseit, A.C.; Sund, E.R.; Holmen, T.L.; Rangul, V.; Bauman, A. url  doi
  Title Multiple lifestyle behaviours and mortality, findings from a large population-based Norwegian cohort study – The HUNT Study Type Journal Article
  Year 2017 Publication BMC Public Health Abbreviated Journal BMC Public Health  
  Volume 17 Issue (up) 1 Pages 58  
  Keywords Adult; Aged; Alcohol Drinking/epidemiology; Cohort Studies; Diet/adverse effects; Female; Follow-Up Studies; Humans; *Life Style; Male; Middle Aged; Norway/epidemiology; Proportional Hazards Models; Risk Factors; *Risk-Taking; Sleep; Smoking/adverse effects; Social Behavior; Young Adult; *All-cause mortality; *Cardiovascular disease; *Cohort study; *Lifestyle behaviour; *Metabolic disease; *Risk factors  
  Abstract BACKGROUND: Lifestyle risk behaviours are responsible for a large proportion of disease burden and premature mortality worldwide. Risk behaviours tend to cluster in populations. We developed a new lifestyle risk index by including emerging risk factors (sleep, sitting time, and social participation) and examine unique risk combinations and their associations with all-cause and cardio-metabolic mortality. METHODS: Data are from a large population-based cohort study in a Norway, the Nord-Trondelag Health Study (HUNT), with an average follow-up time of 14.1 years. Baseline data from 1995-97 were linked to the Norwegian Causes of Death Registry. The analytic sample comprised 36 911 adults aged 20-69 years. Cox regression models were first fitted for seven risk factors (poor diet, excessive alcohol consumption, current smoking, physical inactivity, excessive sitting, too much/too little sleep, and poor social participation) separately and then adjusted for socio-demographic covariates. Based on these results, a lifestyle risk index was developed. Finally, we explored common combinations of the risk factors in relation to all-cause and cardio-metabolic mortality outcomes. RESULTS: All single risk factors, except for diet, were significantly associated with both mortality outcomes, and were therefore selected to form a lifestyle risk index. Risk of mortality increased as the index score increased. The hazard ratio for all-cause mortality increased from 1.37 (1.15-1.62) to 6.15 (3.56-10.63) as the number of index risk factors increased from one to six respectively. Among the most common risk factor combinations the association with mortality was particularly strong when smoking and/or social participation were included. CONCLUSIONS: This study adds to previous research on multiple risk behaviours by incorporating emerging risk factors. Findings regarding social participation and prolonged sitting suggest new components of healthy lifestyles and potential new directions for population health interventions.  
  Address Prevention Research Collaboration, Sydney School of Public Health, The University of Sydney, Camperdown, NSW, Australia  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1471-2458 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:28068991; PMCID:PMC5223537 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 1946  
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Author Li, J.; Wu, B.; Selbaek, G.; Krokstad, S.; Helvik, A.-S. url  doi
  Title Factors associated with consumption of alcohol in older adults – a comparison between two cultures, China and Norway: the CLHLS and the HUNT-study Type Journal Article
  Year 2017 Publication BMC Geriatrics Abbreviated Journal BMC Geriatr  
  Volume 17 Issue (up) 1 Pages 172  
  Keywords Abstainers; Alcohol consumption; China; Elderly; Norway; Older adults  
  Abstract BACKGROUND: There is little knowledge about the consumption of alcohol among Chinese and Norwegian older adults aged 65 years and over. The aim of this study was to investigate the prevalence and factors related to alcohol consumption among older adults in China and Norway. METHODS: The Chinese Longitudinal Healthy Longevity Survey (CLHLS) data in 2008-2009 conducted in China and The Nord-Trondelag Health Study data in 2006-2008 (HUNT3) conducted in Norway were used. Mulitvariable logistic regression was used to test the factors related to alcohol consumption. RESULTS: The prevalence of participants who drink alcohol in the Chinese and Norwegian sample were 19.88% and 46.2%, respectively. The weighted prevalence of participants with consumption of alcohol in the Chinese sample of women and men were 7.20% and 34.14%, respectively. In the Norwegian sample, the prevalence of consumption of alcohol were 43.31% and 65.35% for women and men, respectively. Factors such as younger age, higher level of education, living in urban areas, living with spouse or partner, and better health status were related to higher likelihood of alcohol consumption among Norwegian older women and men; while reported better health status and poorer life satisfaction were related to higher likelihood of alcohol consumption among Chinese. In addition, rural males and older females with higher level of education were more likely to consume alcohol. CONCLUSION: The alcohol consumption patterns were quite different between China and Norway. Besides economic development levels and cultures in the two different countries, demographic characteristics, socioeconomic status, overall health status, and life satisfaction were associated with alcohol consumption as well.  
  Address St. Olav's University Hospital, Trondheim, Norway  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1471-2318 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:28760157; PMCID:PMC5537928 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 1947  
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Author Skaaby, T.; Taylor, A.E.; Jacobsen, R.K.; Paternoster, L.; Thuesen, B.H.; Ahluwalia, T.S.; Larsen, S.C.; Zhou, A.; Wong, A.; Gabrielsen, M.E.; Bjorngaard, J.H.; Flexeder, C.; Mannisto, S.; Hardy, R.; Kuh, D.; Barry, S.J.; Tang Mollehave, L.; Cerqueira, C.; Friedrich, N.; Bonten, T.N.; Noordam, R.; Mook-Kanamori, D.O.; Taube, C.; Jessen, L.E.; McConnachie, A.; Sattar, N.; Upton, M.N.; McSharry, C.; Bonnelykke, K.; Bisgaard, H.; Schulz, H.; Strauch, K.; Meitinger, T.; Peters, A.; Grallert, H.; Nohr, E.A.; Kivimaki, M.; Kumari, M.; Volker, U.; Nauck, M.; Volzke, H.; Power, C.; Hypponen, E.; Hansen, T.; Jorgensen, T.; Pedersen, O.; Salomaa, V.; Grarup, N.; Langhammer, A.; Romundstad, P.R.; Skorpen, F.; Kaprio, J.; R Munafo, M.; Linneberg, A. url  doi
  Title Investigating the causal effect of smoking on hay fever and asthma: a Mendelian randomization meta-analysis in the CARTA consortium Type Journal Article
  Year 2017 Publication Scientific Reports Abbreviated Journal Sci Rep  
  Volume 7 Issue (up) 1 Pages 2224  
  Keywords  
  Abstract Observational studies on smoking and risk of hay fever and asthma have shown inconsistent results. However, observational studies may be biased by confounding and reverse causation. Mendelian randomization uses genetic variants as markers of exposures to examine causal effects. We examined the causal effect of smoking on hay fever and asthma by using the smoking-associated single nucleotide polymorphism (SNP) rs16969968/rs1051730. We included 231,020 participants from 22 population-based studies. Observational analyses showed that current vs never smokers had lower risk of hay fever (odds ratio (OR) = 0.68, 95% confidence interval (CI): 0.61, 0.76; P < 0.001) and allergic sensitization (OR = 0.74, 95% CI: 0.64, 0.86; P < 0.001), but similar asthma risk (OR = 1.00, 95% CI: 0.91, 1.09; P = 0.967). Mendelian randomization analyses in current smokers showed a slightly lower risk of hay fever (OR = 0.958, 95% CI: 0.920, 0.998; P = 0.041), a lower risk of allergic sensitization (OR = 0.92, 95% CI: 0.84, 1.02; P = 0.117), but higher risk of asthma (OR = 1.06, 95% CI: 1.01, 1.11; P = 0.020) per smoking-increasing allele. Our results suggest that smoking may be causally related to a higher risk of asthma and a slightly lower risk of hay fever. However, the adverse events associated with smoking limit its clinical significance.  
  Address Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2045-2322 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:28533558; PMCID:PMC5440386 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 1980  
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Author Thomsen, L.C.V.; McCarthy, N.S.; Melton, P.E.; Cadby, G.; Austgulen, R.; Nygard, O.K.; Johnson, M.P.; Brennecke, S.; Moses, E.K.; Bjorge, L.; Iversen, A.-C. url  doi
  Title The antihypertensive MTHFR gene polymorphism rs17367504-G is a possible novel protective locus for preeclampsia Type Journal Article
  Year 2017 Publication Journal of Hypertension Abbreviated Journal J Hypertens  
  Volume 35 Issue (up) 1 Pages 132-139  
  Keywords Adolescent; Adult; Alleles; Australia; Case-Control Studies; Female; Gene Frequency; Genetic Pleiotropy; Genome-Wide Association Study; Genotype; Humans; Hypertension/genetics; Inflammation/genetics; Methylenetetrahydrofolate Reductase (NADPH2)/*genetics; Norway; Polymorphism, Single Nucleotide; Pre-Eclampsia/*genetics; Pregnancy; Protective Factors; Young Adult  
  Abstract OBJECTIVE: Preeclampsia is a complex heterogeneous disease commonly defined by new-onset hypertension and proteinuria in pregnancy. Women experiencing preeclampsia have increased risk for cardiovascular diseases (CVD) later in life. Preeclampsia and CVD share risk factors and pathophysiologic mechanisms, including dysregulated inflammation and raised blood pressure. Despite commonalities, little is known about the contribution of shared genes (pleiotropy) to these diseases. This study aimed to investigate whether genetic risk factors for hypertension or inflammation are pleiotropic by also being associated with preeclampsia. METHODS: We genotyped 122 single nucleotide polymorphisms (SNPs) in women with preeclampsia (n = 1006) and nonpreeclamptic controls (n = 816) from the Norwegian HUNT Study. SNPs were chosen on the basis of previously reported associations with either nongestational hypertension or inflammation in genome-wide association studies. The SNPs were tested for association with preeclampsia in a multiple logistic regression model. RESULTS: The minor (G) allele of the intronic SNP rs17367504 in the gene methylenetetrahydrofolate reductase (MTHFR) was associated with a protective effect on preeclampsia (odds ratio 0.65, 95% confidence interval 0.53-0.80) in the Norwegian cohort. This association did not replicate in an Australian preeclampsia case-control cohort (P = 0.68, odds ratio 1.05, 95% confidence interval 0.83-1.32, minor allele frequency = 0.15). CONCLUSION: MTHFR is important for regulating transmethylation processes and is involved in regulation of folate metabolism. The G allele of rs17367504 has previously been shown to protect against nongestational hypertension. Our study suggests a novel association between this allele and reduced risk for preeclampsia. This is the first study associating the minor (G) allele of a SNP within the MTHFR gene with a protective effect on preeclampsia, and in doing so identifying a possible pleiotropic protective effect on preeclampsia and hypertension.  
  Address aDepartment of Gynecology and Obstetrics, Haukeland University Hospital bDepartment of Clinical Science, University of Bergen, Bergen, Norway cCentre for Genetic Origins of Health and Disease, University of Western Australia, Perth, Australia dDepartment of Cancer Research and Molecular Medicine, Centre of Molecular Inflammation Research, Norwegian University of Science and Technology, Trondheim eDepartment of Heart Disease, Haukeland University Hospital, Bergen, Norway fSouth Texas Diabetes and Obesity Institute, School of Medicine, University of Texas Rio Grande Valley, Brownsville, Texas, USA gDepartment of Obstetrics and Gynaecology, University of Melbourne, Parkville hPregnancy Research Centre, Department of Maternal-Fetal Medicine, Royal Women's Hospital, Parkville, Victoria iFaculty of Health Sciences, Curtin University, Perth, Western Australia, Australia  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0263-6352 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:27755385; PMCID:PMC5131692 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 1996  
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Author Talseth, A.; Edna, T.-H.; Hveem, K.; Lydersen, S.; Ness-Jensen, E. url  doi
  Title Quality of life and psychological and gastrointestinal symptoms after cholecystectomy: a population-based cohort study Type Journal Article
  Year 2017 Publication BMJ Open Gastroenterology Abbreviated Journal BMJ Open Gastroenterol  
  Volume 4 Issue (up) 1 Pages e000128  
  Keywords Cholecystectomy; Gastrointestinal Function; Quality Of Life  
  Abstract OBJECTIVE: The study aims to examine gastrointestinal symptoms, quality of life and the risk of psychological symptoms after cholecystectomy. DESIGN: This is a prospective population-based cohort study based on the Nord-Trondelag Health Study (HUNT) Norway. HUNT is a repeated health survey of the county population and includes a wide range of health-related items. In the present study, all 3 HUNT surveys were included, performed between 1984 and 2008. Selected items were scores on quality of life, the Hospital Anxiety and Depression Scale (HADS) and selected gastrointestinal symptoms. Participants who underwent cholecystectomy for gallstone disease between 1 January 1990 and until 1 year before attending HUNT3 were compared with the remaining non-operated cohort. Associations between cholecystectomy and the postoperative scores and symptoms were assessed by multivariable regression models. RESULTS: Participants in HUNT1, HUNT2 and HUNT3 were 77 212 (89.4% of those invited), 65 237 (69.5%) and 50 807 (54.1%), respectively. In the study period, 931 participants were operated with cholecystectomy. Cholecystectomy was associated with an increased risk of diarrhoea and stomach pain postoperatively. In addition, cholecystectomy was associated with an increased risk of nausea postoperatively in men. We found no associations between cholecystectomy and quality of life, symptoms of anxiety and depression, constipation, heartburn, or acid regurgitation following surgery. CONCLUSIONS: In this large population-based cohort study, cholecystectomy was associated with postoperative diarrhoea and stomach pain. Cholecystectomy for gallstone colic was associated with nausea in men. There were no associations between quality of life, symptoms of anxiety and depression, constipation, heartburn, or acid regurgitation.  
  Address Department of Medicine, Levanger Hospital, Nord-Trondelag Hospital Trust, Levanger, Norway  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2054-4774 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:28761686; PMCID:PMC5508800 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 2008  
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Author Taylor, A.E.; Carslake, D.; de Mola, C.L.; Rydell, M.; Nilsen, T.I.L.; Bjorngaard, J.H.; Horta, B.L.; Pearson, R.; Rai, D.; Galanti, M.R.; Barros, F.C.; Romundstad, P.R.; Davey Smith, G.; Munafo, M.R. url  doi
  Title Maternal Smoking in Pregnancy and Offspring Depression: a cross cohort and negative control study Type Journal Article
  Year 2017 Publication Scientific Reports Abbreviated Journal Sci Rep  
  Volume 7 Issue (up) 1 Pages 12579  
  Keywords  
  Abstract Previous reports suggest that offspring of mothers who smoke during pregnancy have greater risk of developing depression. However, it is unclear whether this is due to intrauterine effects. Using data from the Avon Longitudinal Study of Parents and Children (ALSPAC) from the UK (N = 2,869), the Nord-Trondelag health study (HUNT) from Norway (N = 15,493), the Pelotas 1982 Birth Cohort Study from Brazil (N = 2,626), and the Swedish Sibling Health Cohort (N = 258 sibling pairs), we compared associations of maternal smoking during pregnancy and mother's partner's smoking during pregnancy with offspring depression and performed a discordant sibling analysis. In meta-analysis, maternal smoking during pregnancy was associated with higher odds of offspring depression (OR 1.20, 95% CI:1.08,1.34), but mother's partner's smoking during pregnancy was not (OR 1.05, 95% CI:0.94,1.17). However, there was only weak statistical evidence that the odds ratios for maternal and mother's partner's smoking differed from each other (p = 0.08). There was no clear evidence for an association between maternal smoking during pregnancy and offspring depression in the sibling analysis. Findings do not provide strong support for a causal role of maternal smoking during pregnancy in offspring depression, rather observed associations may reflect residual confounding relating to characteristics of parents who smoke.  
  Address UK Centre for Tobacco and Alcohol Studies, School of Experimental Psychology, University of Bristol, Bristol, United Kingdom  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2045-2322 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:28974730; PMCID:PMC5626710 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 2010  
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Author Zisko, N.; Skjerve, K.N.; Tari, A.R.; Sandbakk, S.B.; Wisloff, U.; Nes, B.M.; Nauman, J. url  doi
  Title Personal Activity Intelligence (PAI), Sedentary Behavior and Cardiovascular Risk Factor Clustering – the HUNT Study Type Journal Article
  Year 2017 Publication Progress in Cardiovascular Diseases Abbreviated Journal Prog Cardiovasc Dis  
  Volume 60 Issue (up) 1 Pages 89-95  
  Keywords Cardiovascular disease; Cardiovascular disease risk factors; Exercise; Exercise intensity; Physical activity; Sedentary behavior  
  Abstract Prolonged sedentary behavior (SB) positively associates with clustering of risk factors for cardiovascular disease (CVD). The recently developed metric for physical activity (PA) tracking called Personal Activity Intelligence (PAI) takes into account age, sex, resting and maximum heart rate, and a score of >/=100 weekly PAI has been shown to reduce the risk of premature CVD death in healthy as well as individuals with known CVD risk factors, regardless of whether or not the current PA recommendations were met. The aim of the present study was to examine if PAI modifies the associations between SB and CVD risk factor (CV-RF) clustering in a large apparently healthy general population cohort (n=29,950, aged >/=20 years). Logistic regression revealed that in those with >/=100 weekly PAI, the likelihood of CV-RF clustering prevalence associated with prolonged SB was attenuated across age groups. Monitoring weekly PAI-level could be useful to ensure that people perform enough PA to combat SB's deleterious association with CV-RF.  
  Address K.G. Jebsen Center of Exercise in Medicine at the Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Faculty of Medicine, Trondheim, Norway; Department of Cardiology, St. Olavs Hospital, Norway  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0033-0620 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:28274818 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 2028  
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Author Gemes, K.; Malmo, V.; Laugsand, L.E.; Loennechen, J.P.; Ellekjaer, H.; Laszlo, K.D.; Ahnve, S.; Vatten, L.J.; Mukamal, K.J.; Janszky, I. url  doi
  Title Does Moderate Drinking Increase the Risk of Atrial Fibrillation? The Norwegian HUNT (Nord-Trondelag Health) Study Type Journal Article
  Year 2017 Publication Journal of the American Heart Association Abbreviated Journal J Am Heart Assoc  
  Volume 6 Issue (up) 10 Pages  
  Keywords Hunt; alcohol; atrial fibrillation; cohort study; epidemiology; moderate alcohol  
  Abstract BACKGROUND: Compelling evidence suggests that excessive alcohol consumption increases the risk of atrial fibrillation (AF), but the effect of light-moderate alcohol consumption is less certain. We investigated the association between alcohol consumption within recommended limits and AF risk in a light-drinking population. METHODS AND RESULTS: Among 47 002 participants with information on alcohol consumption in a population-based cohort study in Norway, conducted from October 2006 to June 2008, 1697 validated AF diagnoses were registered during the 8 years of follow-up. We used Cox proportional hazard models with fractional polynomials to analyze the association between alcohol intake and AF. Population attributable risk for drinking within the recommended limit (ie, at most 1 drink per day for women and 2 drinks per day for men without risky drinking) compared with nondrinking was also calculated. The average alcohol intake was 3.8+/-4.8 g/d. The adjusted hazard ratio for AF was 1.38 (95% confidence interval, 1.06-1.80) when we compared participants consuming >7 drinks per week with abstainers. When we modeled the quantity of alcohol intake as a continuous variable, the risk increased in a curvilinear manner. It was higher with heavier alcohol intake, but there was virtually no association at <1 drink per day for women and <2 drinks per day for men in the absence of risky drinking. The population attributable risk among nonrisky drinkers was 0.07% (95% confidence interval, -0.01% to 0.13%). CONCLUSIONS: Although alcohol consumption was associated with a curvilinearly increasing risk of AF in general, the attributable risk of alcohol consumption within recommended limits among participants without binge or problem drinking was negligible in this population.  
  Address Regional Center for Health Care Improvement, St Olav's Hospital, Trondheim, Norway  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2047-9980 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:29054845; PMCID:PMC5721892 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 1901  
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Author Hellevik, A.I.; Nordsletten, L.; Johnsen, M.B.; Fenstad, A.M.; Furnes, O.; Storheim, K.; Zwart, J.A.; Flugsrud, G.; Langhammer, A. url  doi
  Title Age of menarche is associated with knee joint replacement due to primary osteoarthritis (The HUNT Study and the Norwegian Arthroplasty Register) Type Journal Article
  Year 2017 Publication Osteoarthritis and Cartilage Abbreviated Journal Osteoarthritis Cartilage  
  Volume 25 Issue (up) 10 Pages 1654-1662  
  Keywords Hip joint replacement; Hormonal therapies; Knee joint replacement; Osteoarthritis; Reproductive history  
  Abstract OBJECTIVE: To investigate whether parity, age at menarche, menopausal status, age at menopause, use of oral contraceptives (OC) or use of hormone replacement therapy (HRT) were associated with total knee replacement (TKR) or total hip replacement (THR) due to primary osteoarthritis. METHOD: In a prospective cohort study of 30,289 women from the second and third surveys of the Nord-Trondelag Health Study, data were linked to the Norwegian Arthroplasty Register (NAR) in order to identify TKR or THR due to primary osteoarthritis. Cox proportional hazards models were used to estimate the hazard ratios (HRs). RESULTS: We observed 430 TKRs and 675 THRs during a mean follow-up time of 8.3 years. Increasing age at menarche was inversely associated with the risk of TKR (P-trend < 0.001). Past users and users of systemic HRT were at higher risk of TKR compared to never users (HR 1.42 (95% confidence interval (CI) 1.06-1.90) and HR 1.40 (95% CI 1.03-1.90), respectively). No association was found between parity, age at menarche, menopausal status, age at menopause, oral contraceptive use or HRT use and THR. CONCLUSION: We found that increasing age at menarche reduced the risk of TKR. Past users and users of systemic HRT were at higher risk of TKR compared to never users. Parity did not increase the risk of THR or TKR.  
  Address The HUNT Research Centre, Department of Public Health and Nursing, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology (NTNU), Levanger, Norway. Electronic address: arnulf.langhammer@ntnu.no  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1063-4584 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:28705605 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 1925  
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Author Hoff, M.; Meyer, H.E.; Skurtveit, S.; Langhammer, A.; Sogaard, A.J.; Syversen, U.; Dhainaut, A.; Skovlund, E.; Abrahamsen, B.; Schei, B. url  doi
  Title Validation of FRAX and the impact of self-reported falls among elderly in a general population: the HUNT study, Norway Type Journal Article
  Year 2017 Publication Osteoporosis International : a Journal Established as Result of Cooperation Between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA Abbreviated Journal Osteoporos Int  
  Volume 28 Issue (up) 10 Pages 2935-2944  
  Keywords Fracture risk assessment; General population studies; Hunt; Osteoporosis  
  Abstract Fracture Risk Assessment Tool (FRAX) without bone mineral density (BMD) for hip fracture prediction was validated in a Norwegian population 50-90 years. Fracture risk increased with higher FRAX score, and the observed number of hip fractures agreed well with the predicted number, except for the youngest and oldest men. Self-reported fall was an independent risk factor for fracture in women. INTRODUCTION: The primary aim was to validate FRAX without BMD for hip fracture prediction in a Norwegian population of men and women 50-90 years. Secondary, to study whether information of falls could improve prediction of fractures in the subgroup aged 70-90 years. METHODS: Data were obtained from the third survey of the Nord-Trondelag Health Study (HUNT3), the fracture registry in Nord-Trondelag, and the Norwegian Prescription Database (NorPD), including 15,432 women and 13,585 men. FRAX hip without BMD was calculated, and hip fractures were registered for a median follow-up of 5.2 years. The number of estimated and observed fractures was assessed, ROC curves with area under the curve (AUC), and Cox regression analyses. For the group aged 70-90 years, self-reported falls the last year before HUNT3 were included in the Cox regression model. RESULTS: The risk of fracture increased with higher FRAX score. When FRAX groups were categorized in a 10-year percentage risk for hip fracture as follows, <4, 4-7.9, 8-11.9, and >/=12%, the hazard ratio (HR) for hip fracture between the lowest and the highest group was 17.80 (95% CI: 12.86-24.65) among women and 23.40 (13.93-39.30) in men. Observed number of hip fractures agreed quite well with the predicted number, except for the youngest and oldest men. AUC was 0.81 (0.78-0.83) for women and 0.79 (0.76-0.83) for men. Self-reported fall was an independent risk factor for fracture in women (HR 1.64, 1.20-2.24), and among men, this was not significant (1.09, 0.65-1.83). CONCLUSIONS: FRAX without BMD predicted hip fracture reasonably well. In the age group 70-90 years, falls seemed to imply an additional risk among women.  
  Address Department of Gynecology, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0937-941X ISBN Medium  
  Area Expedition Conference  
  Notes PMID:28668994 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 1930  
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Author url  doi
  Title Worldwide trends in blood pressure from 1975 to 2015: a pooled analysis of 1479 population-based measurement studies with 19.1 million participants Type Comment
  Year 2017 Publication Lancet (London, England) Abbreviated Journal Lancet  
  Volume 389 Issue (up) 10064 Pages 37-55  
  Keywords Bayes Theorem; *Blood Pressure; *Global Health; Humans; Prevalence; Risk Factors  
  Abstract BACKGROUND: Raised blood pressure is an important risk factor for cardiovascular diseases and chronic kidney disease. We estimated worldwide trends in mean systolic and mean diastolic blood pressure, and the prevalence of, and number of people with, raised blood pressure, defined as systolic blood pressure of 140 mm Hg or higher or diastolic blood pressure of 90 mm Hg or higher. METHODS: For this analysis, we pooled national, subnational, or community population-based studies that had measured blood pressure in adults aged 18 years and older. We used a Bayesian hierarchical model to estimate trends from 1975 to 2015 in mean systolic and mean diastolic blood pressure, and the prevalence of raised blood pressure for 200 countries. We calculated the contributions of changes in prevalence versus population growth and ageing to the increase in the number of adults with raised blood pressure. FINDINGS: We pooled 1479 studies that had measured the blood pressures of 19.1 million adults. Global age-standardised mean systolic blood pressure in 2015 was 127.0 mm Hg (95% credible interval 125.7-128.3) in men and 122.3 mm Hg (121.0-123.6) in women; age-standardised mean diastolic blood pressure was 78.7 mm Hg (77.9-79.5) for men and 76.7 mm Hg (75.9-77.6) for women. Global age-standardised prevalence of raised blood pressure was 24.1% (21.4-27.1) in men and 20.1% (17.8-22.5) in women in 2015. Mean systolic and mean diastolic blood pressure decreased substantially from 1975 to 2015 in high-income western and Asia Pacific countries, moving these countries from having some of the highest worldwide blood pressure in 1975 to the lowest in 2015. Mean blood pressure also decreased in women in central and eastern Europe, Latin America and the Caribbean, and, more recently, central Asia, Middle East, and north Africa, but the estimated trends in these super-regions had larger uncertainty than in high-income super-regions. By contrast, mean blood pressure might have increased in east and southeast Asia, south Asia, Oceania, and sub-Saharan Africa. In 2015, central and eastern Europe, sub-Saharan Africa, and south Asia had the highest blood pressure levels. Prevalence of raised blood pressure decreased in high-income and some middle-income countries; it remained unchanged elsewhere. The number of adults with raised blood pressure increased from 594 million in 1975 to 1.13 billion in 2015, with the increase largely in low-income and middle-income countries. The global increase in the number of adults with raised blood pressure is a net effect of increase due to population growth and ageing, and decrease due to declining age-specific prevalence. INTERPRETATION: During the past four decades, the highest worldwide blood pressure levels have shifted from high-income countries to low-income countries in south Asia and sub-Saharan Africa due to opposite trends, while blood pressure has been persistently high in central and eastern Europe. FUNDING: Wellcome Trust.  
  Address  
  Corporate Author NCD Risk Factor Collaboration (NCD-RisC) Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0140-6736 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:27863813; PMCID:PMC5220163 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 1897  
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Author Heuch, I.; Heuch, I.; Hagen, K.; Mai, X.-M.; Langhammer, A.; Zwart, J.-A. url  doi
  Title Is there an association between vitamin D status and risk of chronic low back pain? A nested case-control analysis in the Nord-Trondelag Health Study Type Journal Article
  Year 2017 Publication BMJ Open Abbreviated Journal BMJ Open  
  Volume 7 Issue (up) 11 Pages e018521  
  Keywords back pain; epidemiology; vitamin D and low back  
  Abstract OBJECTIVES: To explore potential associations between vitamin D status and risk of chronic low back pain (LBP) in a Norwegian cohort, and to investigate whether relationships depend on the season of blood sample collection. DESIGN: A nested case-control study in a prospective data set. SETTING: The Norwegian community-based Nord-Trondelag Health Study (HUNT). Data were collected in the HUNT2 (1995-1997) and HUNT3 (2006-2008) surveys. MAIN OUTCOME MEASURE: Chronic LBP, defined as LBP persisting at least 3 months continuously during the past year. PARTICIPANTS: Among individuals aged 19-55 years without LBP in HUNT2, a data set was generated including 1685 cases with LBP in HUNT3 and 3137 controls without LBP. METHODS: Blood samples from the participants collected in HUNT2 were analysed for serum 25-hydroxyvitamin D (25(OH)D) level. Associations with LBP in HUNT3 were evaluated by unconditional logistic regression analysis with adjustment for age, sex, work status, physical activity at work and in leisure time, education, smoking, and body mass index. RESULTS: No association between vitamin D status and risk of chronic LBP was found in the total data set (OR per 10 nmol/L 25(OH)D=1.01, 95% CI 0.97 to 1.06) or in individuals with blood samples collected in summer/autumn (OR per 10 nmol/L 25(OH)D=0.99, 95% CI 0.93 to 1.06). For blood samples drawn in winter/spring, associations differed significantly between women and men (p=0.004). Among women a positive association was seen (OR per 10 nmol/L 25(OH)D=1.11, 95% CI 1.02 to 1.20), but among men no significant association was observed (OR per 10 nmol/L 25(OH)D=0.90, 95% CI 0.81 to 1.01). CONCLUSIONS: Overall, no association between vitamin D status and risk of LBP was demonstrated. The association suggested in women for the winter/spring season cannot be regarded as established.  
  Address Faculty of Medicine, University of Oslo, Oslo, Norway  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2044-6055 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:29175890; PMCID:PMC5719329 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 1928  
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Author Jaremko, J.L.; Azmat, O.; Lambert, R.G.; Bird, P.; Haugen, I.K.; Jans, L.; Weber, U.; Winn, N.; Zubler, V.; Maksymowych, W.P. url  doi
  Title Validation of a Knowledge Transfer Tool for the Knee Inflammation MRI Scoring System for Bone Marrow Lesions According to the OMERACT Filter: Data from the Osteoarthritis Initiative Type Journal Article
  Year 2017 Publication The Journal of Rheumatology Abbreviated Journal J Rheumatol  
  Volume 44 Issue (up) 11 Pages 1718-1722  
  Keywords Bone Marrow Lesion; Knee Joint; Mri; Omeract; Osteoarthritis; Scoring Methods  
  Abstract OBJECTIVE: To assess feasibility and reliability of scoring bone marrow lesions (BML) on knee magnetic resonance imaging (MRI) in osteoarthritis using the Outcome Measures in Rheumatology Knee Inflammation MRI Scoring System (KIMRISS), with a Web-based interface and online training with real-time iterative calibration. METHODS: Six readers new to the KIMRISS (3 radiologists, 3 rheumatologists) scored sagittal T2-weighted fat-saturated MRI in 20 subjects randomly selected from the Osteoarthritis Initiative data, at baseline and 1-year followup. In the KIMRISS, the reader moves a transparent overlay grid within a Web-based interface to fit bones, then clicks or touches each region containing BML per slice, to score 1 if BML is present. Regional and total scores are automatically calculated. Outcomes include the interreader intraclass correlation coefficients (ICC) and the smallest detectable change (SDC). RESULTS: Scoring took 3-12 min per scan and all readers rated the process as moderately to very user friendly. Despite a low BML burden (average score 2.8% of maximum possible) and small changes, interobserver reliability was moderate to high for BML status and change in the femur and tibia (ICC 0.78-0.88). Four readers also scored the patella reliably, whereas 2 readers were outliers, likely because of image artifacts. SDC of 1.5-5.6 represented 0.7% of the maximum possible score. CONCLUSION: We confirmed feasibility of knee BML scoring by new readers using interactive training and a Web-based touch-sensitive overlay system, finding high reliability and sensitivity to change. Further work will include adjustments to training materials regarding patellar scoring, and study in therapeutic trial datasets with higher burden of BML and larger changes.  
  Address J.L. Jaremko, MD, PhD, FRCPC, Department of Radiology and Diagnostic Imaging, Faculty of Medicine and Dentistry, University of Alberta; O. Azmat, MB, FRCP, Department of Radiology and Diagnostic Imaging, Faculty of Medicine and Dentistry, University of Alberta; R.G. Lambert, MB, FRCPC, Department of Radiology and Diagnostic Imaging, Faculty of Medicine and Dentistry, University of Alberta; P. Bird, MD, Division of Medicine, University of New South Wales; I.K. Haugen, MD, PhD, Department of Rheumatology, Diakonhjemmet Hospital; L. Jans, MD, PhD, Department of Radiology and Medical Imaging, Ghent University Hospital; U. Weber, MD, King Christian 10th Hospital for Rheumatic Diseases, and Institute of Regional Health Research, University of Southern Denmark; N. Winn, MBBS, FRCR, Department of Radiology, Robert Jones and Agnes Hunt Orthopaedic Hospital; V. Zubler, MD, Department of Radiology, Balgrist University Hospital; W.P. Maksymowych, MB ChB, FRCP(C), FACP, Division of Rheumatology, Faculty of Medicine and Dentistry, University of Alberta  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0315-162X ISBN Medium  
  Area Expedition Conference  
  Notes PMID:28365581 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 1932  
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Author Ueland, T.; Laugsand, L.E.; Vatten, L.J.; Janszky, I.; Platou, C.; Michelsen, A.E.; Damas, J.K.; Aukrust, P.; Asvold, B.O. url  doi
  Title Extracellular matrix markers and risk of myocardial infarction: The HUNT Study in Norway Type Journal Article
  Year 2017 Publication European Journal of Preventive Cardiology Abbreviated Journal Eur J Prev Cardiol  
  Volume 24 Issue (up) 11 Pages 1161-1167  
  Keywords Extracellular matrix; Ykl-40; case-control; myocardial infarction  
  Abstract Aims Extracellular matrix remodelling may influence atherosclerotic progression and plaque stability. We hypothesized that evaluation of extracellular matrix markers, with potentially different roles during atherogenesis, could provide information on underlying mechanisms and risk of myocardial infarction (MI) in apparently healthy individuals. Methods We conducted a case-control study nested within the population-based HUNT2 cohort in Norway. A total of 58,761 men and women, free of known cardiovascular disease, were followed for a first MI. During 11.3 years of follow-up, 1587 incident MIs were registered, and these cases were compared with 3959 age- and sex-matched controls. Circulating levels of the ECM proteins CD147 (ECM metalloproteinase inducer; EMMPRIN), cartilage oligomeric matrix protein (COMP: thrombospondin-5) and YKL-40 (chitinase-3-like-1) were measured by enzyme immunoassays. Results We found an inverse association between COMP (quartile (Q) 4 vs. Q1: hazard ratio 0.81 (95% confidence interval: 0.67-0.98)) and YKL-40 (Q4 vs. Q1: hazard ratio 0.77 (0.62-0.95)) with incidence of MI after full multivariable adjustment. Serum CD147 was not associated with MI risk in adjusted analysis. Conclusion High levels of COMP and YKL-40 were associated with lower risk of incident MI, suggesting a potential beneficial role in promoting plaque stability in individuals without incident cardiovascular disease.  
  Address 12 Department of Endocrinology, St Olavs Hospital, Trondheim, Norway  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2047-4873 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:28429960 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 1999  
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Author Ferreira, M.A.; Vonk, J.M.; Baurecht, H.; Marenholz, I.; Tian, C.; Hoffman, J.D.; Helmer, Q.; Tillander, A.; Ullemar, V.; van Dongen, J.; Lu, Y.; Ruschendorf, F.; Esparza-Gordillo, J.; Medway, C.W.; Mountjoy, E.; Burrows, K.; Hummel, O.; Grosche, S.; Brumpton, B.M.; Witte, J.S.; Hottenga, J.-J.; Willemsen, G.; Zheng, J.; Rodriguez, E.; Hotze, M.; Franke, A.; Revez, J.A.; Beesley, J.; Matheson, M.C.; Dharmage, S.C.; Bain, L.M.; Fritsche, L.G.; Gabrielsen, M.E.; Balliu, B.; Nielsen, J.B.; Zhou, W.; Hveem, K.; Langhammer, A.; Holmen, O.L.; Loset, M.; Abecasis, G.R.; Willer, C.J.; Arnold, A.; Homuth, G.; Schmidt, C.O.; Thompson, P.J.; Martin, N.G.; Duffy, D.L.; Novak, N.; Schulz, H.; Karrasch, S.; Gieger, C.; Strauch, K.; Melles, R.B.; Hinds, D.A.; Hubner, N.; Weidinger, S.; Magnusson, P.K.E.; Jansen, R.; Jorgenson, E.; Lee, Y.-A.; Boomsma, D.I.; Almqvist, C.; Karlsson, R.; Koppelman, G.H.; Paternoster, L. url  doi
  Title Shared genetic origin of asthma, hay fever and eczema elucidates allergic disease biology Type Meta-Analysis
  Year 2017 Publication Nature Genetics Abbreviated Journal Nat Genet  
  Volume 49 Issue (up) 12 Pages 1752-1757  
  Keywords Asthma/*genetics; Eczema/*genetics; Genetic Predisposition to Disease/*genetics; Genome-Wide Association Study/methods; Humans; Hypersensitivity/*genetics; Phenotype; Polymorphism, Single Nucleotide; Rhinitis, Allergic, Seasonal/*genetics; Risk Factors  
  Abstract Asthma, hay fever (or allergic rhinitis) and eczema (or atopic dermatitis) often coexist in the same individuals, partly because of a shared genetic origin. To identify shared risk variants, we performed a genome-wide association study (GWAS; n = 360,838) of a broad allergic disease phenotype that considers the presence of any one of these three diseases. We identified 136 independent risk variants (P < 3 x 10(-8)), including 73 not previously reported, which implicate 132 nearby genes in allergic disease pathophysiology. Disease-specific effects were detected for only six variants, confirming that most represent shared risk factors. Tissue-specific heritability and biological process enrichment analyses suggest that shared risk variants influence lymphocyte-mediated immunity. Six target genes provide an opportunity for drug repositioning, while for 36 genes CpG methylation was found to influence transcription independently of genetic effects. Asthma, hay fever and eczema partly coexist because they share many genetic risk variants that dysregulate the expression of immune-related genes.  
  Address MRC Integrative Epidemiology Unit, School of Social and Community Medicine, University of Bristol, Bristol, UK  
  Corporate Author LifeLines Cohort Study Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1061-4036 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:29083406 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 1903  
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Author Hellevik, A.I.; Nordsletten, L.; Johnsen, M.B.; Fenstad, A.M.; Furnes, O.; Storheim, K.; Zwart, J.A.; Flugsrud, G.; Langhammer, A. url  doi
  Title Corrigendum to “Age of menarche is associated with knee joint replacement due to primary osteoarthritis (The HUNT Study and the Norwegian Arthroplasty Register)” [Osteoarthr Cartil 25 (2017) 1654-1662] Type Published Erratum
  Year 2017 Publication Osteoarthritis and Cartilage Abbreviated Journal Osteoarthritis Cartilage  
  Volume 25 Issue (up) 12 Pages 2148-2149  
  Keywords  
  Abstract  
  Address The HUNT Research Centre, Department of Public Health and Nursing, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology (NTNU), Levanger, Norway. Electronic address: arnulf.langhammer@ntnu.no  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1063-4584 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:29066295 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 1926  
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Author Johnsen, M.B.; Hellevik, A.I.; Smastuen, M.C.; Langhammer, A.; Furnes, O.; Flugsrud, G.B.; Nordsletten, L.; Zwart, J.A.; Storheim, K. url  doi
  Title The mediating effect of body mass index on the relationship between smoking and hip or knee replacement due to primary osteoarthritis. A population-based cohort study (the HUNT Study) Type Journal Article
  Year 2017 Publication PloS one Abbreviated Journal PLoS One  
  Volume 12 Issue (up) 12 Pages e0190288  
  Keywords  
  Abstract To investigate the total effect of smoking on total hip or knee replacement (THR/TKR) due to primary osteoarthritis (OA) and to quantify the indirect effect of smoking through body mass index (BMI). Participants from the Nord-Trondelag Health Study (the HUNT Study) were linked to the Norwegian Arthroplasty Register to detect the first THR or TKR due to primary OA. A mediation analysis was used to decompose the total effect of smoking into a direct and indirect effect. BMI was considered a mediator in the analysis. All effects were estimated as hazard ratios (HRs) with 95% confidence intervals (CIs). The indirect effect of smoking mediated through BMI was expressed as a percentage (proportion*100). In total 55 188 participants were followed up during 17.2 years (median). We identified 1322 THRs and 754 TKRs. For men, the total effect of current vs. never smoking revealed a decreased risk of THR (HR 0.59, 95% CI 0.46-0.76) and TKR (HR 0.47, 95% CI 0.32-0.66). For women, current smoking increased the risk of THR (HR 1.34, 95% CI 1.11-1.60). For men, 6% and 7% of the risk reduction for THR and TKR, respectively, was mediated by BMI. We found a negative association between smoking and THR or TKR for men. On the contrary, smoking was associated with increased risk of THR for women. Most of the effect of smoking on joint replacement risk remained unexplained by BMI.  
  Address Faculty of Medicine, University of Oslo, Oslo, Norway  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1932-6203 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:29284048; PMCID:PMC5746263 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 1933  
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Author Liu, D.J.; Peloso, G.M.; Yu, H.; Butterworth, A.S.; Wang, X.; Mahajan, A.; Saleheen, D.; Emdin, C.; Alam, D.; Alves, A.C.; Amouyel, P.; Di Angelantonio, E.; Arveiler, D.; Assimes, T.L.; Auer, P.L.; Baber, U.; Ballantyne, C.M.; Bang, L.E.; Benn, M.; Bis, J.C.; Boehnke, M.; Boerwinkle, E.; Bork-Jensen, J.; Bottinger, E.P.; Brandslund, I.; Brown, M.; Busonero, F.; Caulfield, M.J.; Chambers, J.C.; Chasman, D.I.; Chen, Y.E.; Chen, Y.-D.I.; Chowdhury, R.; Christensen, C.; Chu, A.Y.; Connell, J.M.; Cucca, F.; Cupples, L.A.; Damrauer, S.M.; Davies, G.; Deary, I.J.; Dedoussis, G.; Denny, J.C.; Dominiczak, A.; Dube, M.-P.; Ebeling, T.; Eiriksdottir, G.; Esko, T.; Farmaki, A.-E.; Feitosa, M.F.; Ferrario, M.; Ferrieres, J.; Ford, I.; Fornage, M.; Franks, P.W.; Frayling, T.M.; Frikke-Schmidt, R.; Fritsche, L.G.; Frossard, P.; Fuster, V.; Ganesh, S.K.; Gao, W.; Garcia, M.E.; Gieger, C.; Giulianini, F.; Goodarzi, M.O.; Grallert, H.; Grarup, N.; Groop, L.; Grove, M.L.; Gudnason, V.; Hansen, T.; Harris, T.B.; Hayward, C.; Hirschhorn, J.N.; Holmen, O.L.; Huffman, J.; Huo, Y.; Hveem, K.; Jabeen, S.; Jackson, A.U.; Jakobsdottir, J.; Jarvelin, M.-R.; Jensen, G.B.; Jorgensen, M.E.; Jukema, J.W.; Justesen, J.M.; Kamstrup, P.R.; Kanoni, S.; Karpe, F.; Kee, F.; Khera, A.V.; Klarin, D.; Koistinen, H.A.; Kooner, J.S.; Kooperberg, C.; Kuulasmaa, K.; Kuusisto, J.; Laakso, M.; Lakka, T.; Langenberg, C.; Langsted, A.; Launer, L.J.; Lauritzen, T.; Liewald, D.C.M.; Lin, L.A.; Linneberg, A.; Loos, R.J.F.; Lu, Y.; Lu, X.; Magi, R.; Malarstig, A.; Manichaikul, A.; Manning, A.K.; Mantyselka, P.; Marouli, E.; Masca, N.G.D.; Maschio, A.; Meigs, J.B.; Melander, O.; Metspalu, A.; Morris, A.P.; Morrison, A.C.; Mulas, A.; Muller-Nurasyid, M.; Munroe, P.B.;