Using data from the National Health Interview Survey for years spanning 1976 and 2001, this paper presents an age–period–cohort analysis of weight gain throughout the life cycle. We find that while all ages experienced an increase in the prevalence of those overweight and/or obese, the prevalence among young adults has grown at a faster rate than that of older age groups. The increases in body mass index are primarily due to period effects, not cohort or age effects. From the ordered logistical regression analyses, we find that the protective influence of factors such as education, income, and age on an individual’s body mass index have decreased over time. The analyses suggest that the increase in the prevalence of those overweight or obese is a phenomenon experienced by all demographic groups in the US, albeit to differing degrees.
Population Research and Policy Review – Springer Journals
Published: Mar 18, 2008
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