Journal
INTERNATIONAL JOURNAL OF OBESITY
Volume 30, Issue 9, Pages 1397-1407Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/sj.ijo.0803307
Keywords
body weight changes; glucose; blood pressure; cholesterol; triglycerides
Categories
Funding
- NHLBI NIH HHS [N01 HC048047, N01 HC048050, N01 HC048048, N01 HC048049, N01 HC095095] Funding Source: Medline
- NIDDK NIH HHS [F32 DK061831, F32 DK061831-02] Funding Source: Medline
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Objectives: To examine whether changes in cardiovascular disease (CVD) risk factors differ by baseline weight status among young adults who maintained or gained weight. Design: Longitudinal cohort study. Subjects: White and African Americans who either maintained (+/- 5 pounds; n = 488) or gained (> 5 pounds; n = 2788) weight over 15 years. Measurements: Anthropometrics and CVD risk factors were measured at baseline (1985-1986) and follow-up. Participants were classified as normal weight (body mass index (BMI) 18.5-24.9 kg/m(2)) or overweight (BMI >= 25 kg/m(2)) at baseline. Multivariable models were stratified by ethnicity and weight change category. Results: Normal weight maintainers tended to have more favorable risk factors at baseline and follow-up than overweight maintainers. Size and direction of 15-year changes in risk factors were similar by weight status, except that in white normal weight maintainers changes in high-density lipoprotein (HDL)-cholesterol (3.3 mg/dl (95% confidence interval (CI): 0.4, 6.3)) and triglycerides (-14.7 mg/dl (-25.8,-3.7)) were more favorable. Weight gain was associated with unfavorable changes in risk factors. Weight gainers normal weight at baseline had less adverse changes in glucose, blood pressure, HDL-cholesterol (whites only) and triglycerides (African Americans only) than overweight gainers. However, normal weight African-American weight gainers had more adverse changes in total (3.1 mg/dl (0.2, 6.1)) and low-density lipoprotein-cholesterol (3.4 mg/dl (0.6, 6.3)). Conclusions: Baseline weight status does not appear to influence the size or direction of risk factor changes among adults who maintained their weight over 15 years. In contrast, weight gain was associated with changes in some risk factors differentially by baseline weight status.
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