title: The Information and Motivation and Behavioral Skills Model of ART Adherence among HIV-Positive Adults in Mexico.
abstract: BACKGROUND
  Middle-income countries are in need of research that uses theoretical-based models to assess factors that predict adherence to antiretroviral therapy (ART) and help in the design, implementation, and evaluation of interventions for nonadherent populations. In Mexico, the Information and Motivation and Behavioral Skills (IMB) Model of ART Adherence constructs is useful in describing and predicting adherence behaviors in various samples but has not been articulated to people living with HIV (PLWH) on ART. The aim of this was to characterize the IMB core constructs and identify correlates of ART adherence in an HIV-positive clinic sample in Mexico.
  
  
  METHODS
  A convenience sample of 109 HIV-positive patients attending their monthly visits at a local public hospital were interviewed with the Spanish version of the LifeWindows IMB ART Adherence Questionnaire (LW-IMB-AAQ) as well as a sociodemographic questionnaire. All participants were recruited from a hospital-based outpatient clinical care site.
  
  
  RESULTS
  Partial confirmation of the relationships proposed by the IMB Model of ART Adherence was found. As predicted by the model, only behavioral skills had direct association with all measures of self-reported adherence, and motivation was associated with behavioral skills. Information did not demonstrate significant relations to either motivation or behavioral skills, nor did it directly associate with adherence. Self-reported adherence did not associate with CD4 counts, nor did any of the IMB model core constructs.
  
  
  CONCLUSIONS
  Applicability of the IMB Model of ART Adherence in this setting is discussed. The IMB Model of ART Adherence offered promise in this population and could help tailor population-specific interventions to promote high rates of ART adherence.
authors.affiliation: Universidad Nacional Autónoma de México, Mexico DF, Mexico carolina.santillan@comunidad.unam.mx.
authors.forename: Carolina
authors.initials: C
authors.lastname: Santillán Torres Torija
authors.affiliation: Universidad Nacional Autónoma de México, Mexico DF, Mexico.
authors.forename: Gabina
authors.initials: G
authors.lastname: Villagrán Vázquez
authors.affiliation: Universidad Nacional Autónoma de México, Mexico DF, Mexico.
authors.forename: Silvia Susana
authors.initials: SS
authors.lastname: Robles Montijo
authors.affiliation: Universidad Nacional Autónoma de México, Mexico DF, Mexico.
authors.forename: Luz
authors.initials: L
authors.lastname: de Lourdes Eguiluz Romo
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D019380:Anti-HIV Agents / Q000627:therapeutic use*; D003430:Cross-Sectional Studies; D005260:Female; D015658:HIV Infections / Q000188:drug therapy* / Q000523:psychology*; D015438:Health Behavior; D006801:Humans; D008297:Male; D055118:Medication Adherence / Q000523:psychology*; D008800:Mexico; D008875:Middle Aged; D008960:Models, Psychological; D009042:Motivation; D018709:Statistics, Nonparametric; D055815:Young Adult
chemical_list: D019380:Anti-HIV Agents
keywords: ART; HIV; IMB model; Mexico; adherence