Psychiatric morbidity and adherence to antiretroviral medication in patients with HIV/AIDS.

Objective: To determine whether psychological morbidity is associated with poor compliance with antiretroviral medication in HIV-positive subjects.

Method: This is a cross-sectional survey of patients attending a public HIV clinic in Sydney. Volunteers completed a survey which gathered data on substance use, psychological distress, attitudes to illness and medication, and self-reported medication adherence. Psychological morbidity was assessed using the 28 question General Health Questionnaire, GHQ-28, and adherence was assessed using a combination of direct self-report and indirect questions.

Results: Forty-four per cent of subjects were identified as suffering psychological disorder on the GHQ. They reported significantly poorer adherence to antiretroviral medication than subjects not identified as 'cases' (odds ratio 4.5). Expressed scepticism about medication and previous use of psychotropics was also associated with poor adherence.

Conclusions: Psychological morbidity is associated with poor adherence to antiretroviral medication. It is not known whether treatment of identified psychological morbidity leads to improved antiretroviral medication adherence and better medical outcome. A longitudinal study could help answer this question.