Longitudinal analysis of patterns and predictors of changes in self-reported adherence to antiretroviral therapy:

Tracy R Glass1, Manuel Battegay, Matthias Cavassini

  • 1Basel Institute for Clinical Epidemiology and Biostatistics, University Hospital Basel, Basel, Switzerland. tglass@uhbs.ch

Insights

Understanding changes in combination antiretroviral therapy (cART) adherence is crucial for HIV management. Factors like age, lifestyle, and treatment changes impact adherence patterns over time.

Area of Science:

  • HIV/AIDS research
  • Pharmacology
  • Public Health

Background:

  • Adherence to combination antiretroviral therapy (cART) is vital for managing HIV.
  • Changes in adherence behavior over time are not fully understood.

Purpose of the Study:

  • To identify distinct adherence patterns in HIV patients on cART.
  • To determine predictors of worsening and improving adherence over time.

Main Methods:

  • Longitudinal study of Swiss HIV Cohort Study participants.
  • Trajectory analysis to identify adherence groups.
  • Logistic regression to identify predictors of adherence changes.

Main Results:

  • Four adherence groups identified: good, worsening, improving, and poor.
  • Younger age, substance use, depression, and life events predicted worsening adherence.
  • Regimen simplification and treatment changes predicted improved adherence.

Conclusions:

  • Treatment, behavioral, and life events significantly influence cART adherence.
  • Early monitoring and intervention for factors predicting worsening adherence are essential to prevent treatment failure and drug resistance.
Abstract

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