title: Changes in weight and waist circumference over 9 years in a Scottish population.
abstract: OBJECTIVE
  To document patterns of measured weight and waist circumference (WC) change and the increase in overweight and obesity over a 9-year period.
  
  
  METHODS
  A total of 1044 subjects from two age-defined cohorts aged 39 and 59 in 1991. Height, weight and WC were measured in 1991, 1995 and 2000 and body mass index (BMI) was calculated. Pattern of weight and WC change was studied over approximately 9 years.
  
  
  RESULTS
  The prevalence of overweight and obesity increased markedly and the younger cohort showed greater increases in weight and WC than the older cohort. There was no significant difference in mean BMI and/or mean 9-year weight change between men and women in either age cohort, and mean weight gain was similar for all occupational groups. Only 20% of subjects maintained a stable weight (+/-2 kg), while 42.2 and 17.6% gained greater than 5 and 10 kg over the 9-year period, respectively. The rate of weight gain appeared to be relatively steady over the 9 years among younger subjects but declined in the older subjects in the second half of the observation period.
  
  
  CONCLUSIONS
  Health promotion strategies to prevent weight gain need to be population-based, targeting all social and age groups, but particularly those in their early middle-age.
authors.affiliation: Department of Nutrition, Faculty of Health and Nutrition, Tabriz University of Medical Sciences, Tabriz, Islamic Republic of Iran.
authors.forename: M
authors.initials: M
authors.lastname: Ebrahimi-Mameghani
authors.forename: J A
authors.initials: JA
authors.lastname: Scott
authors.forename: G
authors.initials: G
authors.lastname: Der
authors.forename: M E J
authors.initials: ME
authors.lastname: Lean
authors.forename: C M
authors.initials: CM
authors.lastname: Burns
mesh_terms: D000328:Adult; D000367:Age Factors; D015992:Body Mass Index; D001835:Body Weight / Q000502:physiology*; D015331:Cohort Studies; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000453:epidemiology*; D050177:Overweight / Q000453:epidemiology*; D015995:Prevalence; D012606:Scotland / Q000453:epidemiology; D012737:Sex Factors; D049629:Waist-Hip Ratio