Glass, T. R. and De Geest, S. and Hirschel, B. and Battegay, M. and Furrer, H. and Covassini, M. and Vernazza, P. L. and Bernasconi, E. and Rickenboch, M. and Weber, R. and Bucher, H. C. and Swiss, HIV Cohort Study. (2008) Self-reported non-adherence to antiretroviral therapy repeatedly assessed by two questions predicts treatment failure in virologically suppressed patients. Antiviral therapy, Vol. 13. pp. 77-85.
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Official URL: http://edoc.unibas.ch/dok/A6006120
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Abstract
BACKGROUND: The aim of this study was to explore the predictive value of longitudinal self-reported adherence data on viral rebound. METHODS: Individuals in the Swiss HIV Cohort Study on combined antiretroviral therapy (cART) with RNA 2) in the previous 28 days. Viral rebound was defined as RNA <500 copies/ml. Cox regression models with time-independent and -dependent covariates were used to evaluate time to viral rebound. RESULTS: A total of 2,664 individuals and 15,530 visits were included. Across all visits, missing doses were reported as follows: 1 dose 14.7%, 2 doses 5.1%, <2 doses 3.8% taking or =2 consecutive doses 3.2%. In total, 308 (11.6%) patients experienced viral rebound. After controlling for confounding variables, self-reported non-adherence remained significantly associated with the rate of occurrence of viral rebound (compared with zero missed doses: 1 dose, hazard ratio [HR] 1.03, 95% confidence interval [CI] 0.72-1.48; 2 doses, HR 2.17, 95% CI 1.46-3.25; <2 doses, HR 3.66, 95% CI 2.50-5.34). Several variables significantly associated with an increased risk of viral rebound irrespective of adherence were identified: being on a protease inhibitor or triple nucleoside regimen (compared with a non-nucleoside reverse transcriptase inhibitor), <5 previous cART regimens, seeing a less-experienced physician, taking co-medication, and a shorter time virally suppressed. CONCLUSIONS: A simple self-report adherence questionnaire repeatedly administered provides a sensitive measure of non-adherence that predicts viral rebound.
Faculties and Departments: | 03 Faculty of Medicine > Departement Klinische Forschung > Clinical Epidemiology and Biostatistics CEB > Klinische Epidemiologie (Bucher H) 03 Faculty of Medicine > Departement Biomedizin > Department of Biomedicine, University Hospital Basel > Infection Biology (Khanna) 03 Faculty of Medicine > Departement Public Health > Institut für Pflegewissenschaft |
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UniBasel Contributors: | De Geest, Sabina M. and Battegay, Manuel E. and Glass, Tracy |
Item Type: | Article, refereed |
Article Subtype: | Research Article |
Publisher: | International Medical Press |
ISSN: | 1359-6535 |
Note: | Publication type according to Uni Basel Research Database: Journal article |
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Identification Number: |
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Last Modified: | 11 Oct 2012 15:32 |
Deposited On: | 11 Oct 2012 15:30 |
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