title: Seniors' body weight dissatisfaction and longitudinal associations with weight changes, anorexia of aging, and obesity: results from the NuAge Study.
abstract: OBJECTIVE
  We examined longitudinal associations between weight dissatisfaction, weight changes, anorexia of aging, and obesity among 1,793 seniors followed over 4 years between 2003 and 2009.
  
  
  METHODS
  Obesity prevalence (body mass index [BMI] ≥ 30) and prevalence/incidence of weight dissatisfaction, anorexia of aging (self-reported appetite loss), and weight changes ≥5% were assessed. Predictors of weight loss ≥5%, anorexia of aging, and weight dissatisfaction were examined using logistic regressions.
  
  
  RESULTS
  Half of seniors experienced weight dissatisfaction (50.6%, 95% confidence interval [CI] = [48.1, 53.1]). Anorexia of aging and obesity prevalence was 7.0% (95% CI = [5.7, 8.3]) and 25.1% (95% CI = [22.9, 27.3]), whereas incidence of weight gain/loss ≥5% was 6.6% (95% CI = [1.3, 11.9]) and 8.8% (95% CI = [3.3, 14.3]). Weight gain ≥5% predicts men's subsequent weight dissatisfaction (odds ratio [OR] = 6.66, 95% CI = [2.06, 21.60]). No other association was observed.
  
  
  CONCLUSIONS
  Weight dissatisfaction is frequent but not associated with subsequent eating disorders. In men, weight gain predicted weight dissatisfaction. Seniors' weight dissatisfaction does not necessarily equate weight changes. Due to its high prevalence, it is of public health interest to understand how seniors' weight dissatisfaction may impact health.
authors.affiliation: Health & Social Services Center-University Institute of Geriatrics of Sherbrooke, Quebec, Canada mathieu.roy7@usherbrooke.ca.
authors.forename: Mathieu
authors.initials: M
authors.lastname: Roy
authors.affiliation: Institut universitaire de gériatrie de Montréal, Quebec, Canada Université de Montréal, Quebec, Canada.
authors.forename: Bryna
authors.initials: B
authors.lastname: Shatenstein
authors.affiliation: Université de Montréal, Quebec, Canada Centre Hospitalier de l'Université de Montréal Research Center, Quebec, Canada.
authors.forename: Pierrette
authors.initials: P
authors.lastname: Gaudreau
authors.affiliation: McGill University Health Centre, Montréal, Quebec, Canada.
authors.forename: José A
authors.initials: JA
authors.lastname: Morais
authors.affiliation: Health & Social Services Center-University Institute of Geriatrics of Sherbrooke, Quebec, Canada Université de Sherbrooke, Quebec, Canada.
authors.forename: Hélène
authors.initials: H
authors.lastname: Payette
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000375:Aging; D000855:Anorexia / Q000453:epidemiology*; D001828:Body Image / Q000523:psychology*; D001835:Body Weight; D005260:Female; D006801:Humans; D016015:Logistic Models; D008137:Longitudinal Studies; D008297:Male; D009765:Obesity / Q000453:epidemiology*; D010549:Personal Satisfaction; D015995:Prevalence; D015430:Weight Gain; D015431:Weight Loss
keywords: aging; anorexia; body image; body weight changes; obesity