title: Subjective wellbeing and longevity: Findings from a 22-year cohort study.
abstract: The health implications of positive affect (PA) are still a matter of debate. The present study examined the longitudinal relationships between subjective wellbeing (SWB) components (i.e., Life satisfaction, PA and negative affect (NA)) and all-cause mortality in older adults.
  
  
  
  Discrete-time survival analysis within the structural equation modeling framework was applied to data from the PAQUID Cohort (n=3777, baseline age 62-101years) including ten time periods spanning 22years. Time-invariant (age, gender, baseline life satisfaction, diabetes mellitus and hypercholesterolemia status) and lagged time-varying (PA, NA, dementia, functional status and self-rated health) predictors were included sequentially in the analyses.
  
  
  
  When included together in the model, only PA among the SWB components showed a significant association with longevity, which persisted (OR=.962, 95% CI=.938, .986) even after adjustment for the interaction between PA and NA, and after additional adjustment for prior medical conditions, functional status and self-rated health.
  
  
  
  In congruence with positive psychology, PA proved to be an independent protective factor regardless of variations in NA, which did not seem to be a mortality risk factor.
authors.affiliation: University of Bordeaux, France. Electronic address: kamel.gana@u-bordeaux.fr.
authors.forename: Kamel
authors.initials: K
authors.lastname: Gana
authors.affiliation: University of Bordeaux, France.
authors.forename: Guillaume
authors.initials: G
authors.lastname: Broc
authors.affiliation: University of Bordeaux, France.
authors.forename: Yaël
authors.initials: Y
authors.lastname: Saada
authors.affiliation: University of Bordeaux, France.
authors.forename: Hélène
authors.initials: H
authors.lastname: Amieva
authors.affiliation: University of Bordeaux, France.
authors.forename: Bruno
authors.initials: B
authors.lastname: Quintard
mesh_terms: D000339:Affect; D000368:Aged; D000369:Aged, 80 and over; D016208:Databases, Factual; D005260:Female; D005500:Follow-Up Studies; D005602:France; D006801:Humans; D008136:Longevity; D008297:Male; D008875:Middle Aged; D010549:Personal Satisfaction; D065840:Protective Factors; D016019:Survival Analysis
keywords: Life satisfaction; Longevity; Mortality; Negative affect; Positive affect; Subjective wellbeing