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Predictors for non-adherence to antiretroviral therapy
K J Wilson1, A Doxanakis, C K Fairley
1Department of Public Health, The University of Melbourne, Parkville, Vic. 3010, Australia.
Sexual Health
|December 13, 2005
Summary
Identifying risk factors for non-adherence to antiretroviral therapy (ART) is crucial. A brief questionnaire effectively identified past non-adherence, aiding prediction of future adherence challenges in HIV patients.
Area of Science:
- Infectious Diseases
- Public Health
- Pharmacology
Background:
- Antiretroviral therapy (ART) adherence is critical for managing HIV/AIDS.
- Non-adherence can lead to treatment failure and drug resistance.
- Identifying predictors of non-adherence is essential for effective patient management.
Purpose of the Study:
- To identify risk factors associated with non-adherence to antiretroviral therapy.
- To evaluate the utility of a brief questionnaire in predicting ART adherence.
Main Methods:
- A questionnaire assessed lifestyle, self-efficacy, mental health, substance use, and social support in 200 HIV clients.
- Self-reported adherence (SRA) was measured by missed doses over 4, 7, and 28 days.
- Viral load data was reviewed and correlated with SRA.
Main Results:
- Non-adherence (<98.2% SRA) was linked to lack of regular daily routines and lower self-efficacy.
- Frequent marijuana use (>4 times/week) and lower confidence in medication efficacy were significant predictors.
- A composite score from the questionnaire showed 71% sensitivity and 59% specificity in predicting non-adherence.
Conclusions:
- A 10-minute questionnaire can identify clients with a history of non-adherence to ART.
- This tool may assist clinicians in predicting and addressing future adherence issues.
- Early identification can facilitate targeted interventions to improve ART adherence and patient outcomes.