Psychological model of ART adherence behaviors in persons living with HIV/AIDS in Mexico: a structural equation analysis.

Objective: The objective of this study has been to test the ability of variables of a psychological model to predict antiretroviral therapy medication adherence behavior.

Methods: We have conducted a cross-sectional study among 172 persons living with HIV/AIDS (PLWHA), who completed four self-administered assessments: 1) the Psychological Variables and Adherence Behaviors Questionnaire, 2) the Stress-Related Situation Scale to assess the variable of Personality, 3) The Zung Depression Scale, and 4) the Duke-UNC Functional Social Support Questionnaire. Structural equation modeling was used to construct a model to predict medication adherence behaviors.