Weight Gain in Americans
Weight Study Aim
To examine the rate of weight gain over time among Americans by age, gender,
and race.
Weight Study Subjects
Scientific sample of 5117 Americans, ages 25-74 y in 1971 followed for
20 years.
Weight Study 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.
Weight Study Conclusion
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.
Source: International Journal of Obesity
(2003)
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