Advanced Search
MyIDEAS: Login to save this paper or follow this series

The Effects of Age and Birth Cohort on Dietary Quality in the United States

Contents:

Author Info

  • Beatty, Timothy K.M.
  • Lin, Biing-Hwan
  • Smith, Travis A.

Abstract

Secular trends in health outcomes related to dietary quality have changed substantially over the past three decades. The objective of this study is to decompose changes in dietary quality over 1977-2008 into the biological effects of age, contemporaneous effects of time period and group membership effects related to birth cohort. Dietary quality is measured by the Healthy Eating Index-2005 (HEI-2005). Using an Age-Period-Cohort (APC) model, findings suggest HEI-2005 scores follow a U-shaped trajectory over the typical American's lifetime (aged 2-79 y), with the lowest scores observed during early-to-mid adulthood (20-50 y, HEI = 54). Period effects largely increase throughout the sample period over 1977-2008. By examining over 100 birth cohorts (1898-2005), results show that those born in the first half of the 20th century have similar levels of dietary quality. However, following the end of the second World War, a substantial decrease in HEI-2005 scores is observed for those born between 1950 and 1990. Although recent cohorts in the 1990's and early 2000's have yet to fully age, preliminary estimates suggest dietary quality may be on the rebound. While nutritional and epidemiological studies tend to focus on secular trends (or period effects) this study suggests cohorts play an important role in characterizing changes in dietary quality.

Download Info

If 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.
File URL: http://purl.umn.edu/151426
Download Restriction: no

Bibliographic Info

Paper provided by Agricultural and Applied Economics Association in its series 2013 Annual Meeting, August 4-6, 2013, Washington, D.C. with number 151426.

as in new window
Length:
Date of creation: Jun 2013
Date of revision:
Handle: RePEc:ags:aaea13:151426

Contact details of provider:
Postal: 555 East Wells Street, Suite 1100, Milwaukee, Wisconsin 53202
Phone: (414) 918-3190
Fax: (414) 276-3349
Email:
Web page: http://www.aaea.org
More information through EDIRC

Related research

Keywords: Diet quality; nutrition; Age Period Cohort; Food Consumption/Nutrition/Food Safety; Research Methods/ Statistical Methods; I14; D39; I32;

Find related papers by JEL classification:

This paper has been announced in the following NEP Reports:

References

References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
as in new window
  1. Fu, Wenjiang J. & Hall, Peter, 2006. "Asymptotic properties of estimators in age-period-cohort analysis," Statistics & Probability Letters, Elsevier, vol. 76(17), pages 1925-1929, November.
Full references (including those not matched with items on IDEAS)

Citations

Lists

This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

Statistics

Access and download statistics

Corrections

When requesting a correction, please mention this item's handle: RePEc:ags:aaea13:151426. See general information about how to correct material in RePEc.

For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (AgEcon Search).

If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

If references are entirely missing, you can add them using this form.

If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.

If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.

Please note that corrections may take a couple of weeks to filter through the various RePEc services.