title: Rates of weight change for black and white Americans over a twenty year period.
abstract: OBJECTIVE
  To examine the rate of weight gain over time among Americans by age, gender, and race.
  
  
  METHODS
  Scientific sample of 5117 Americans, ages 25-74 y in 1971 followed for 20 y.
  
  
  RESULTS
  Rates of weight gain estimated by mixed effects models are highest among young adults and rates of weight loss are greatest among older adults. The overall shape of the growth curves are similar for men and women, black and white, in terms of both weight gain and weight loss. Rates are also affected by baseline body mass index (BMI=wt in kg/height in m(2)).
  
  
  CONCLUSIONS
  Americans gain weight until middle age, stabilize, and begin to lose weight near age 60. Weight loss during old age is especially evident for obese Americans. The ability to accurately identify groups with increased risk and target them for obesity prevention will help combat the steady rise of overweight and obesity in America.
authors.affiliation: Department of Community Medicine and Health Care, University of Connecticut School of Medicine, Farmington 06030, USA. Sheehan@nso.uchc.edu
authors.forename: T J
authors.initials: TJ
authors.lastname: Sheehan
authors.forename: S
authors.initials: S
authors.lastname: DuBrava
authors.forename: L M
authors.initials: LM
authors.lastname: DeChello
authors.forename: Z
authors.initials: Z
authors.lastname: Fang
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D044383:Black People; D015992:Body Mass Index; D001835:Body Weight / Q000208:ethnology; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D012737:Sex Factors; D014481:United States; D015430:Weight Gain; D015431:Weight Loss; D044465:White People; D001741:Black or African American