Distance to HIV care and treatment adherence: Adjusting for socio-demographic and geographical heterogeneity

Spat Spatiotemporal Epidemiol. 2018 Nov:27:29-35. doi: 10.1016/j.sste.2018.08.001. Epub 2018 Aug 22.

Abstract

Distance to health services plays an important role in determining access to care and an individual's health. This study aims to examine the relationship between distance to antiretroviral therapy (ART) prescribing physician and adherence to HIV treatment in British Columbia, Canada. Only participants who provided highly accurate locational data for both place of residence and their physician were used in the analysis. Using logistic regression, a multivariable confounder model was created to assess the association between distance and adherence. A geographically weighted logistic regression was also performed to adjust for spatial dependency. There were 1528 participants in the analysis, for a median distance of 17.85km. The final model showed further away from ART prescribing physician had a higher chance of incomplete adherence to ART (adjusted odds ratio 1.31; 95% Confidence Interval 1.04-1.65). Mobile services could potentially increase adherence rates for population residing further away from their ART prescribing physician.

Keywords: Access to care; GIS; HIV.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Antiretroviral Therapy, Highly Active / methods
  • Antiretroviral Therapy, Highly Active / statistics & numerical data
  • British Columbia / epidemiology
  • Female
  • HIV Infections* / epidemiology
  • HIV Infections* / therapy
  • Health Services Accessibility / statistics & numerical data*
  • Humans
  • Male
  • Needs Assessment
  • Quality Improvement
  • Treatment Adherence and Compliance / statistics & numerical data*