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J Aging Health. 2013 Mar;25(2):342-63. doi: 10.1177/0898264312468593. Epub 2012 Dec 21.

Latent heterogeneity in long-term trajectories of body mass index in older adults.

Author information

  • 1Department of Internal Medicine/Geriatrics, Yale University, New Haven, CT 06510, USA. andabm@umich.edu

Erratum in

  • J Aging Health. 2013 Apr;25(3):532.

Abstract

OBJECTIVE:

To evaluate latent heterogeneity in long-term trajectories of body weight in older adults.

METHODS:

We analyzed 14-year longitudinal data on 10,314 older adults from the Health and Retirement Study. Semiparametric mixture models identified latent subgroups of similar trajectories of body mass index (BMI).

RESULTS:

Five distinct trajectory subgroups emerged: normal starting-BMI with accelerated increase over time (trajectory #1), overweight and increasing (trajectory #2), borderline-obese and increasing (trajectory #3), obese and increasing (trajectory #4), and morbidly obese with decelerating gain (trajectory #5). Blacks and Hispanics had greater risk of membership in ascending high-BMI trajectory groups. Females had approximately half the risk of following overweight and obese increasing BMI trajectories compared with males.

DISCUSSION:

Distinct latent subgroups of BMI trajectories and significant racial/ethnic and gender trajectory heterogeneity exist in the older adult population. The propensity of men and minorities to experience high-risk BMI trajectories may exacerbate existing disparities in morbidity/ mortality in older age.

PMID:
23264442
[PubMed - indexed for MEDLINE]
PMCID:
PMC4325276
Free PMC Article
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