Pilot study examining the efficacy of an electronic intervention to promote HIV medication adherence

Abstract

Widespread dissemination of current interventions designed to improve HIV medication adherence is limited by several barriers, including additional time and expense burdens on the health care systems. Electronic interventions could aid in dissemination of interventions in the clinic setting. This study developed and tested the feasibility and acceptability of a computer-based adaption of an empirically supported face-to-face adherence promotion intervention. HIV-positive individuals (N = 92) on antiretroviral therapy with self-reported adherence <95% were randomized to the electronic intervention + treatment as usual (TAU) or TAU only. Study outcome variables which included treatment self-efficacy and self-reported medication adherence were assessed at baseline and follow-up. Time × condition interaction effects in mixed model analysis of variance (ANOVAs) examined the differences in patterns of change in the outcome variables over time between the two groups. Participants in the electronic intervention condition reported higher levels of self-efficacy to adhere to their medication at follow-up compared to the control condition. Although nonsignificant, levels of adherence tended to improve over time in the intervention condition, while TAU adherence remained constant. This was the first study to investigate a single-session, computer-based adherence intervention. Results suggest that electronic interventions are feasible and this method may be effective at increasing self-efficacy and adherence among patients reporting suboptimal adherence levels.

Keywords:

• computer-based intervention
• HIV
• medication adherence