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Abstract
Since the era of highly active antiretroviral therapy (HAART), HIV is considered a chronic disease. Adherence to HAART is crucial for effectiveness. Non-adherence negatively impacts patient outcome and the larger economy. However, data on adherence among the Belgian HIV cohort are scarce. Therefore, the purpose of this pilot study was to identify determinants of adherence among HIV patients treated in Belgium. The study was conducted at the Aids Reference Centre of Ghent University Hospital between 1 January and 31 December 2012. Sociodemographic data were collected, along with the Simplified Medication Adherence Questionnaire (SMAQ), the Center for Adherence Support Evaluation (CASE) Adherence Index, the EuroQol-6D, the Medical Outcomes Study-HIV (MOS-HIV), the Beck Depression Inventory-II, and three neurocognitive complaints screening questions. To date, 218 patients participated in the study, among whom 173 (79·4%) were male. Mean age was 46·0±10·6 years and 133 patients (63·9%) were homosexual. According to the SMAQ and the CASE, 78·5% and 93·5% of the patients were adherent to antiretroviral therapy. Logistic regression analysis revealed that smoking, neurocognitive complaints, and female sex were independent determinants of non-adherence. In conclusion, there is an elevated risk for non-adherence in smokers, people experiencing neurocognitive problems, and women in our sample. The latter could reflect differences between male and female HIV patients in Belgium. Adherence improving initiatives should be tailored to these three risk groups.
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Acknowledgements
The authors would like to thank Sylvie Dinakis for her contribution in the collection and the input of the data.