Do birth cohorts matter? Age-period-cohort analyses of the obesity epidemic in the United States
AbstractMany studies have cited the importance of secular changes or "period effects" as causes of the U.S. obesity epidemic. Unfortunately, relatively little attention has been devoted to the possible influence of cohort-related mechanisms. To address this current gap in the scientific literature, this investigation utilized the responses from 1.7 million participants in the 1976-2002 National Health Interview Surveys to determine how birth cohorts may have contributed to the rapid increase in the prevalence of obesity. Results from hierarchical age-period-cohort (HAPC) models confirmed that period effects are principally responsible for the U.S. obesity epidemic. However, HAPC models also demonstrated that birth cohort membership is influential. Independent of age and period effects, the predicted probability of obesity at age 25 increased by 30% for cohorts born between 1955 and 1975. Our results also showed that age, period and cohort effects varied by race/gender and educational attainment. For instance, increases in the predicted probabilities of obesity were particularly sharp for recent cohorts of Black females. Our investigation successfully demonstrated that both secular change and birth cohort membership have independently contributed to elevated odds of obesity among recent generations of Americans, suggesting that cohort-specific strategies may be needed to combat disconcertingly high rates of obesity in the U.S.
Download InfoIf you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.
Bibliographic InfoArticle provided by Elsevier in its journal Social Science & Medicine.
Volume (Year): 69 (2009)
Issue (Month): 10 (November)
Contact details of provider:
Web page: http://www.elsevier.com/wps/find/journaldescription.cws_home/315/description#description
You can help add them by filling out this form.
CitEc Project, subscribe to its RSS feed for this item.
- Fumagalli, Elena & Mentzakis, Emmanouil & Suhrcke, Marc, 2013. "Do political factors matter in explaining under- and overweight outcomes in developing countries?," Journal of Behavioral and Experimental Economics (formerly The Journal of Socio-Economics), Elsevier, vol. 46(C), pages 48-56.
- John Komlos & Marek Brabec, 2010. "The Trend of BMI Values among US Adults," CESifo Working Paper Series 2987, CESifo Group Munich.
- Sarma, Sisira & Devlin, Rose Anne & Thind, Amardeep & Chu, Man-Kee, 2012. "Canadian family physicians’ decision to collaborate: Age, period and cohort effects," Social Science & Medicine, Elsevier, vol. 75(10), pages 1811-1819.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Zhang, Lei).
If references are entirely missing, you can add them using this form.