Cardiovascular Research

Testing gender and longitudinal measurement invariance of the SF-36 in American Indian older adults: The strong heart study.

Authors: Celestina Barbosa-Leiker|||Ekaterina Burduli|||Randi Arias-Losado|||Clemma Muller|||Carolyn Noonan|||Astrid Suchy-Dicey|||Lonnie Nelson|||Steven P Verney|||Thomas J Montine|||Dedra Buchwald

Affiliations: + Expand

Abstract

Information about the equality of psychometric properties of the medical outcomes study (MOS) Short Form-36 (SF-36), a health status measure, across gender and across the lifespan for American Indian adults is lacking. We tested measurement invariance (configural, metric, scalar invariance) of the physical and mental components between gender and over time in a sample of 2,709 (1,054 men, 1,654 women) American Indian older adults at three time points, and across a 6-year time frame. Measurement invariance of a 2-factor higher-order model was demonstrated between gender at each time point. Tests of longitudinal invariance indicated longitudinal measurement invariance over time. Multiple-group latent means analysis indicated men had significantly higher physical and mental component latent means compared to women at each time point, and longitudinal latent means analysis found physical and mental component latent means decreased over time. The 2-factor higher-order model SF-36 is valid for American Indian older adults over a 6-year time frame. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

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