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Author (up) Ask, H.; Rognmo, K.; Torvik, F.A.; Roysamb, E.; Tambs, K. url  doi
  Title Non-random mating and convergence over time for alcohol consumption, smoking, and exercise: the Nord-Trondelag Health Study Type Journal Article
  Year 2012 Publication Behavior Genetics Abbreviated Journal Behav Genet  
  Volume 42 Issue 3 Pages 354-365  
  Keywords Adult; Age Factors; Aged, 80 and over; Alcohol Drinking/epidemiology/*genetics/psychology; Cohort Studies; Cross-Sectional Studies; Data Interpretation, Statistical; Exercise/*physiology/psychology; Female; Humans; Life Style; Longitudinal Studies; Male; *Marriage; Middle Aged; Nonlinear Dynamics; Norway/epidemiology; Prospective Studies; Smoking/epidemiology/*genetics/psychology; Spouses; Young Adult  
  Abstract Spouses tend to have similar lifestyles. We explored the degree to which spouse similarity in alcohol use, smoking, and physical exercise is caused by non-random mating or convergence. We used data collected for the Nord-Trondelag Health Study from 1984 to 1986 and prospective registry information about when and with whom people entered marriage/cohabitation between 1970 and 2000. Our sample included 19,599 married/cohabitating couples and 1,551 future couples that were to marry/cohabitate in the 14-16 years following data collection. All couples were grouped according to the duration between data collection and entering into marriage/cohabitation. Age-adjusted polychoric spouse correlations were used as the dependent variables in non-linear segmented regression analysis; the independent variable was time. The results indicate that spouse concordance in lifestyle is due to both non-random mating and convergence. Non-random mating appeared to be strongest for smoking. Convergence in alcohol use and smoking was evident during the period prior to marriage/cohabitation, whereas convergence in exercise was evident throughout life. Reduced spouse similarity in smoking with relationship duration may reflect secular trends.  
  Address Division of Mental Health, Norwegian Institute of Public Health, 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 0001-8244 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:22005768 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 1505  
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