Online Program

Stability in Physical Function among Older Mexican Americans

Tuesday, November 3, 2015

Bret Howrey, PhD, Family Medicine, University of Texas Medical Branch - Galveston, Galveston, TX
Kristen Peek, PhD, University of Texas Medical Branch
Kenneth Ottenbacher, PhD, Division of Rehabilitation Sciences, Galveston, TX
Studies of older adults have identified risk factors for declining ability. Factors associated with long-term maintenance of function into old age are less emphasized. We used latent class mixture models to identify subgroups of change in Activities of Daily Living (ADL) over time in a sample from the Hispanic Established Populations for Epidemiologic Study of the Elderly, including participants at all levels of ability  (N = 2763) and a subsample without ADL limitations at baseline (N=2493). Three distinct trajectories of limitations were identified in both samples and characterized as stable, slow and rapid increase in limitations. Compared to the rapid increase group, the stable groups had more men, were high school educated, and were overweight. In both samples, the rapid increase groups had the highest rates of diabetes, hypertension, and cognitive impairment. Stroke had a significant impact in the total and subsample for the stable group (β = 0.98, p <0.001 and β = 1.12, p <0.001), the slow increase group (β = 0.40, p <0.001 and β = 0.36, p <0.001) and the rapid increase group (β = 0.25, p <0.001and β = 0.30, p <0.001). Church attendance was associated with reduced limitations in the total and subsamples but only for the slow increase group (β = -0.20, p <0.05; and β = -0.30, p <0.05 respectively). Among older Mexican Americans, substantial heterogeneity exists in changes in ADLs over time. Attempts at maintaining physical function may benefit from targeting reductions in cardiovascular risk factors and increases in engaging activities.

Learning Areas:


Learning Objectives:
Describe heterogeneous trajectories of ADL disability among older Mexican-orign adults

Keyword(s): Epidemiology, Disabilities

Presenting author's disclosure statement:

Qualified on the content I am responsible for because: I have been primary author or coauthor on several studies of examining the longitudinal change using the Hispanic Established Population for the Epidemiological Study of the Elderly.
Any relevant financial relationships? No

I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.