期刊
OBESITY FACTS
卷 7, 期 2, 页码 102-110出版社
KARGER
DOI: 10.1159/000362196
关键词
Weight loss; Aging; Obesity; Prevalence; Predictors
资金
- National Institute on Aging [NIA U01AG009740, 2RO1AG7644-01A1, 2RO1AG017644]
- UK Medical Research Council
- UK Economic and Social Research Council
- Cancer Research UK
- Cancer Research UK [14133] Funding Source: researchfish
Objective: To examine the prevalence and demographic predictors of clinically meaningful weight loss in community samples of obese older adults in the USA and the UK. Methods: Data were from obese older adults (BMI >= 30 kg/m(2); age >= 52 years), free of a cancer diagnosis, from the Health and Retirement Study (HRS; n = 3398) and the English Longitudinal Study of Ageing (ELSA; n = 998). Weight change was assessed from 2004 to 2008. Multivariable logistic regression tested whether age, sex, ethnicity, marital status, education, or BMI predicted >= 5% weight loss. Results: Over a quarter (28.7%) of obese participants from HRS and 16.6% from ELSA lost = 5% weight. Being female (odds ratio (OR) = 1.31, 95% confidence interval (CI) = 1.11-1.54) and heavier (BMI >= 35 kg/m(2)) (OR = 1.60, 95% CI = 1.37-1.87) predicted weight loss in HRS. Trends were similar in ELSA (female: OR = 1.18, 95% CI = 0.83-1.69; BMI = 35 kg/m(2) : OR = 1.24, 95% CI = 0.85-1.82). ORs were increased in >= 65-year-olds in HRS (OR = 1.55, 95% CI = 1.33-1.81), and reduced in married people in ELSA (OR = 0.69, 95% CI = 0.48-1.00). Neither education nor ethnicity predicted weight loss in either cohort. Conclusion: A high proportion of obese older adults experience clinically meaningful weight loss, but few demographic variables consistently predict weight loss in this population. (C) 2014 S. Karger GmbH, Freiburg
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