Skip to main content
Top
Published in: AIDS and Behavior 4/2010

01-08-2010 | Original Paper

Adherence to Antiretroviral Therapy Among HIV-Infected Drug Users: A Meta-Analysis

Authors: Monica Malta, Monica M. F. Magnanini, Steffanie A. Strathdee, Francisco I. Bastos

Published in: AIDS and Behavior | Issue 4/2010

Login to get access

Abstract

We conducted a meta-analysis of studies assessing adherence to highly active antiretroviral therapy (HAART) and a qualitative systematic review of factors associated with better HAART outcomes among HIV+ drug users (DU). Thirty-eight studies were considered, which analyzed 14,960 patients (11,394 HIV+ DU, 76.2%). Overall adherence (pooled percent of DU classified as adherent in each study) was 0.60 (95% CI: 0.52–0.68), similar to levels identified by studies conducted with HIV+ patients who are not drug users. Time frame used to measure adherence was an independent predictor of inter-study heterogeneity. The systematic review identified better HAART outcomes among former DU, those with less severe psychiatric conditions, those receiving opioid substitution therapy and/or psychosocial support. Patients initiating HAART with lower viral load and higher CD4 counts, and those without co-infections also had better treatment outcomes. Our findings suggest that HIV+ DU tend to be inappropriately assumed to be less adherent and unlikely to achieve desirable treatment outcomes, when compared to their non-DU cohort.
Literature
go back to reference Aceijas, C., Oppenheimer, E., Stimson, G. V., Ashcroft, R. E., Matic, S., & Hickman, M. (2006). Antiretroviral treatment for injecting DU in developing and transitional countries 1 year before the end of the “Treating 3 million by 2005. Making it happen. The WHO strategy” (“3 by 5”). Addiction (Abingdon, England), 101, 1246–1253. doi:10.1111/j.1360-0443.2006.01509.x. Aceijas, C., Oppenheimer, E., Stimson, G. V., Ashcroft, R. E., Matic, S., & Hickman, M. (2006). Antiretroviral treatment for injecting DU in developing and transitional countries 1 year before the end of the “Treating 3 million by 2005. Making it happen. The WHO strategy” (“3 by 5”). Addiction (Abingdon, England), 101, 1246–1253. doi:10.​1111/​j.​1360-0443.​2006.​01509.​x.
go back to reference Altice, F. L., Mezger, J. A., Hodges, J., Bruce, R. D., Marinovich, A., Walton, M., et al. (2004). Developing a directly administered antiretroviral therapy intervention for HIV-infected DU: Implications for program replication. Clinical Infectious Diseases, 38, S376–S387. doi:10.1086/421400.CrossRefPubMed Altice, F. L., Mezger, J. A., Hodges, J., Bruce, R. D., Marinovich, A., Walton, M., et al. (2004). Developing a directly administered antiretroviral therapy intervention for HIV-infected DU: Implications for program replication. Clinical Infectious Diseases, 38, S376–S387. doi:10.​1086/​421400.CrossRefPubMed
go back to reference Altice, F. L., Mostashari, F., & Friedland, G. H. (2001). Trust and the acceptance of and adherence to antiretroviral therapy. Journal of Acquired Immune Deficiency Syndromes, 28, 47–58.PubMed Altice, F. L., Mostashari, F., & Friedland, G. H. (2001). Trust and the acceptance of and adherence to antiretroviral therapy. Journal of Acquired Immune Deficiency Syndromes, 28, 47–58.PubMed
go back to reference Altman, D. G., Schulz, K. F., Moher, D., Egger, M., Davidoff, F., Elbourne, D., et al. (2001). The revised CONSORT statement for reporting randomized trials: Explanation and elaboration. Annals of Internal Medicine, 134, 663–694.PubMed Altman, D. G., Schulz, K. F., Moher, D., Egger, M., Davidoff, F., Elbourne, D., et al. (2001). The revised CONSORT statement for reporting randomized trials: Explanation and elaboration. Annals of Internal Medicine, 134, 663–694.PubMed
go back to reference Arnsten, J. H., Demas, P. A., Farzadegan, H., Grant, R. W., Gourevitch, M. N., Chang, C. J., et al. (2001). Antiretroviral therapy adherence and viral suppression in HIV-infected DU: Comparison of self-report and electronic monitoring. Clinical Infectious Diseases, 33, 1417–1423. doi:10.1086/323201.CrossRefPubMed Arnsten, J. H., Demas, P. A., Farzadegan, H., Grant, R. W., Gourevitch, M. N., Chang, C. J., et al. (2001). Antiretroviral therapy adherence and viral suppression in HIV-infected DU: Comparison of self-report and electronic monitoring. Clinical Infectious Diseases, 33, 1417–1423. doi:10.​1086/​323201.CrossRefPubMed
go back to reference Arnsten, J. H., Li, X., Mizuno, Y., Knowlton, A. R., Gourevitch, M. N., Handley, K., et al. (2007). Factors associated with antiretroviral therapy adherence and medication errors among HIV-infected injection drug users. Journal of Acquired Immune Deficiency Syndromes, 46, S64–S71.CrossRefPubMed Arnsten, J. H., Li, X., Mizuno, Y., Knowlton, A. R., Gourevitch, M. N., Handley, K., et al. (2007). Factors associated with antiretroviral therapy adherence and medication errors among HIV-infected injection drug users. Journal of Acquired Immune Deficiency Syndromes, 46, S64–S71.CrossRefPubMed
go back to reference Atkinson, J. S., Schönnesson, L. N., Williams, M. L., & Timpson, S. C. (2008). Associations among correlates of schedule adherence to antiretroviral therapy (ART): A path analysis of a sample of crack cocaine using sexually active African-Americans with HIV infection. AIDS Care, 20, 253–262. doi:10.1080/09540120701506788.CrossRefPubMed Atkinson, J. S., Schönnesson, L. N., Williams, M. L., & Timpson, S. C. (2008). Associations among correlates of schedule adherence to antiretroviral therapy (ART): A path analysis of a sample of crack cocaine using sexually active African-Americans with HIV infection. AIDS Care, 20, 253–262. doi:10.​1080/​0954012070150678​8.CrossRefPubMed
go back to reference Avants, S. K., Margolin, A., Warburton, L. A., Hawkins, K. A., & Shi, J. (2001). Predictors of nonadherence to HIV-related medication regimens during methadone stabilization. The American Journal on Addictions, 10, 69–78. doi:10.1080/105504901750160501.CrossRefPubMed Avants, S. K., Margolin, A., Warburton, L. A., Hawkins, K. A., & Shi, J. (2001). Predictors of nonadherence to HIV-related medication regimens during methadone stabilization. The American Journal on Addictions, 10, 69–78. doi:10.​1080/​1055049017501605​01.CrossRefPubMed
go back to reference Bangsberg, D. R. (2006). Less than 95% adherence to nonnucleoside reverse-transcriptase inhibitor therapy can lead to viral suppression. Clinical Infectious Diseases, 43, 939–941. doi:10.1086/507526.CrossRefPubMed Bangsberg, D. R. (2006). Less than 95% adherence to nonnucleoside reverse-transcriptase inhibitor therapy can lead to viral suppression. Clinical Infectious Diseases, 43, 939–941. doi:10.​1086/​507526.CrossRefPubMed
go back to reference Bassetti, S., Battegay, M., Furrer, H., Rickenbach, M., Flepp, M., Kaiser, L., et al. (1999). Why is highly active antiretroviral therapy (HAART) not prescribed or discontinued? Swiss HIV cohort study. Journal of Acquired Immune Deficiency Syndromes, 21, 114–119.PubMed Bassetti, S., Battegay, M., Furrer, H., Rickenbach, M., Flepp, M., Kaiser, L., et al. (1999). Why is highly active antiretroviral therapy (HAART) not prescribed or discontinued? Swiss HIV cohort study. Journal of Acquired Immune Deficiency Syndromes, 21, 114–119.PubMed
go back to reference Berlin, J. A. (1995). Invited commentary. American Journal of Epidemiology, 142, 383–387.PubMed Berlin, J. A. (1995). Invited commentary. American Journal of Epidemiology, 142, 383–387.PubMed
go back to reference Bouhnik, A. D., Chesney, M., Carrieri, P., Gallais, H., Moreau, J., Moatti, J. P., et al. (2002). Nonadherence among HIV-infected injecting DU: The impact of social instability. Journal of Acquired Immune Deficiency Syndromes, 31, S149–S153.PubMed Bouhnik, A. D., Chesney, M., Carrieri, P., Gallais, H., Moreau, J., Moatti, J. P., et al. (2002). Nonadherence among HIV-infected injecting DU: The impact of social instability. Journal of Acquired Immune Deficiency Syndromes, 31, S149–S153.PubMed
go back to reference Bouhnik, A. D., Preau, M., Vincent, E., Carrieri, M. P., Gallais, H., Lepeu, G., et al. (2005). Depression and clinical progression in HIV-infected DU treated with highly active antiretroviral therapy. Antiviral Therapy, 10, 53–61.PubMed Bouhnik, A. D., Preau, M., Vincent, E., Carrieri, M. P., Gallais, H., Lepeu, G., et al. (2005). Depression and clinical progression in HIV-infected DU treated with highly active antiretroviral therapy. Antiviral Therapy, 10, 53–61.PubMed
go back to reference Carrieri, M. P., Chesney, M. A., Spire, B., Loundou, A., Sobel, A., Lepeu, G., et al. (2003a). Failure to maintain adherence to HAART in a cohort of French HIV-positive injecting DU. International Journal of Behavioral Medicine, 10, 1–14. doi:10.1207/S15327558IJBM1001_01.CrossRefPubMed Carrieri, M. P., Chesney, M. A., Spire, B., Loundou, A., Sobel, A., Lepeu, G., et al. (2003a). Failure to maintain adherence to HAART in a cohort of French HIV-positive injecting DU. International Journal of Behavioral Medicine, 10, 1–14. doi:10.​1207/​S15327558IJBM100​1_​01.CrossRefPubMed
go back to reference Carrieri, M. P., Raffi, F., Lewden, C., Sobel, A., Michelet, C., Cailleton, V., et al. (2003b). Impact of early versus late adherence to highly active antiretroviral therapy on immuno-virological response: A 3-year follow-up study. Antiviral Therapy, 8, 585–594.PubMed Carrieri, M. P., Raffi, F., Lewden, C., Sobel, A., Michelet, C., Cailleton, V., et al. (2003b). Impact of early versus late adherence to highly active antiretroviral therapy on immuno-virological response: A 3-year follow-up study. Antiviral Therapy, 8, 585–594.PubMed
go back to reference Celentano, D. D., Galai, N., Sethi, A. K., Shah, N. G., Strathdee, S. A., Vlahov, D., et al. (2001). Time to initiating highly active antiretroviral therapy among HIV-infected injection DU. AIDS (London, England), 15, 1707–1715. Celentano, D. D., Galai, N., Sethi, A. K., Shah, N. G., Strathdee, S. A., Vlahov, D., et al. (2001). Time to initiating highly active antiretroviral therapy among HIV-infected injection DU. AIDS (London, England), 15, 1707–1715.
go back to reference Celentano, D. D., Vlahov, D., Cohn, S., Shadle, V. M., Obasanjo, O., & Moore, R. D. (1998). Self-reported antiretroviral therapy in injection DU. JAMA: The Journal of the American Medical Association, 280, 544–546. doi:10.1001/jama.280.6.544.CrossRef Celentano, D. D., Vlahov, D., Cohn, S., Shadle, V. M., Obasanjo, O., & Moore, R. D. (1998). Self-reported antiretroviral therapy in injection DU. JAMA: The Journal of the American Medical Association, 280, 544–546. doi:10.​1001/​jama.​280.​6.​544.CrossRef
go back to reference Chesney, M. A., Ickovics, J. R., Chambers, D. B., Gifford, A. L., Neidig, J., Zwickl, B., et al. (2000). Self-reported adherence to antiretroviral medications among participants in HIV clinical trials: The AACTG adherence instruments. Patient Care Committee & Adherence Working Group of the Outcomes Committee of the Adult AIDS Clinical Trials Group (AACTG). AIDS Care, 12, 255–266.CrossRefPubMed Chesney, M. A., Ickovics, J. R., Chambers, D. B., Gifford, A. L., Neidig, J., Zwickl, B., et al. (2000). Self-reported adherence to antiretroviral medications among participants in HIV clinical trials: The AACTG adherence instruments. Patient Care Committee & Adherence Working Group of the Outcomes Committee of the Adult AIDS Clinical Trials Group (AACTG). AIDS Care, 12, 255–266.CrossRefPubMed
go back to reference Cofrancesco, J., Jr., Scherzer, R., Tien, P. C., Gibert, C. L., Southwell, H., Sidney, S., et al. (2008). Illicit drug use and HIV treatment outcomes in a US cohort. AIDS (London, England), 22, 357–365. Cofrancesco, J., Jr., Scherzer, R., Tien, P. C., Gibert, C. L., Southwell, H., Sidney, S., et al. (2008). Illicit drug use and HIV treatment outcomes in a US cohort. AIDS (London, England), 22, 357–365.
go back to reference Cooper, H., & Hedges, L. V. (1994). The handbook of research synthesis. New York: Russell Sage Foundation. Cooper, H., & Hedges, L. V. (1994). The handbook of research synthesis. New York: Russell Sage Foundation.
go back to reference Des Jarlais, D. C., Lyles, C., & Crepaz, N. (2004). Improving the reporting quality of nonrandomized evaluations of behavioral and public health interventions: The TREND statement. American Journal of Public Health, 94, 361–366.CrossRefPubMed Des Jarlais, D. C., Lyles, C., & Crepaz, N. (2004). Improving the reporting quality of nonrandomized evaluations of behavioral and public health interventions: The TREND statement. American Journal of Public Health, 94, 361–366.CrossRefPubMed
go back to reference Duran, S., Solas, C., Spire, B., Carrieri, M. P., Fuzibet, J. G., Costagliola, D., et al. (2001). Do HIV-infected injecting DU over-report adherence to highly active antiretroviral therapy? A comparison between patients’ self-reports and serum protease inhibitor concentrations in the French Manif 2000 cohort study. AIDS (London, England), 15, 1075–1077. doi:10.1097/00002030-200105250-00024. Duran, S., Solas, C., Spire, B., Carrieri, M. P., Fuzibet, J. G., Costagliola, D., et al. (2001). Do HIV-infected injecting DU over-report adherence to highly active antiretroviral therapy? A comparison between patients’ self-reports and serum protease inhibitor concentrations in the French Manif 2000 cohort study. AIDS (London, England), 15, 1075–1077. doi:10.​1097/​00002030-200105250-00024.
go back to reference Egger, M., May, M., Chene, G., Phillips, A. N., Ledergerber, B., Dabis, F., et al. (2002). Prognosis of HIV-1-infected patients starting highly active antiretroviral therapy: A collaborative analysis of prospective studies. Lancet, 360, 119–129. doi:10.1016/S0140-6736(02)09411-4.CrossRefPubMed Egger, M., May, M., Chene, G., Phillips, A. N., Ledergerber, B., Dabis, F., et al. (2002). Prognosis of HIV-1-infected patients starting highly active antiretroviral therapy: A collaborative analysis of prospective studies. Lancet, 360, 119–129. doi:10.​1016/​S0140-6736(02)09411-4.CrossRefPubMed
go back to reference Escobar, I., Campo, M., Martin, J., Fernandez-Shaw, C., Pulido, F., & Rubio, R. (2003). Factors affecting patient adherence to highly active antiretroviral therapy. The Annals of Pharmacotherapy, 37, 775–781. doi:10.1345/aph.1C427.CrossRefPubMed Escobar, I., Campo, M., Martin, J., Fernandez-Shaw, C., Pulido, F., & Rubio, R. (2003). Factors affecting patient adherence to highly active antiretroviral therapy. The Annals of Pharmacotherapy, 37, 775–781. doi:10.​1345/​aph.​1C427.CrossRefPubMed
go back to reference Friedland, G., & Williams, A. (1999). Attaining higher goals in HIV treatment: The central importance of adherence. AIDS (London, England), 13(Suppl 1), S61–S72. Friedland, G., & Williams, A. (1999). Attaining higher goals in HIV treatment: The central importance of adherence. AIDS (London, England), 13(Suppl 1), S61–S72.
go back to reference Gordillo, V., del Amo, J., Soriano, V., & Gonzalez-Lahoz, J. (1999). Sociodemographic and psychological variables influencing adherence to antiretroviral therapy. AIDS (London, England), 13, 1763–1769. doi:10.1097/00002030-199909100-00021. Gordillo, V., del Amo, J., Soriano, V., & Gonzalez-Lahoz, J. (1999). Sociodemographic and psychological variables influencing adherence to antiretroviral therapy. AIDS (London, England), 13, 1763–1769. doi:10.​1097/​00002030-199909100-00021.
go back to reference Haug, N. A., Sorensen, J. L., Lollo, N. D., Gruber, V. A., Delucchi, K. L., & Hall, S. M. (2005). Gender differences among HIV-positive methadone maintenance patients enrolled in a medication adherence trial. AIDS Care, 17, 1022–1029. doi:10.1080/09540120500100882.CrossRefPubMed Haug, N. A., Sorensen, J. L., Lollo, N. D., Gruber, V. A., Delucchi, K. L., & Hall, S. M. (2005). Gender differences among HIV-positive methadone maintenance patients enrolled in a medication adherence trial. AIDS Care, 17, 1022–1029. doi:10.​1080/​0954012050010088​2.CrossRefPubMed
go back to reference Hinkin, C. H., Barclay, T. R., Castellon, S. A., Levine, A. J., Durvasula, R. S., Marion, S. D., et al. (2007). Drug use and medication adherence among HIV-1 infected individuals. AIDS and Behavior, 11, 185–194. doi:10.1007/s10461-006-9152-0.CrossRefPubMed Hinkin, C. H., Barclay, T. R., Castellon, S. A., Levine, A. J., Durvasula, R. S., Marion, S. D., et al. (2007). Drug use and medication adherence among HIV-1 infected individuals. AIDS and Behavior, 11, 185–194. doi:10.​1007/​s10461-006-9152-0.CrossRefPubMed
go back to reference Hogg, R. S., Heath, K. V., Yip, B., Craib, K. J., O’Shaughnessy, M. V., Schechter, M. T., et al. (1998). Improved survival among HIV-infected individuals following initiation of antiretroviral therapy. JAMA: The Journal of the American Medical Association, 279, 450–454. doi:10.1001/jama.279.6.450.CrossRef Hogg, R. S., Heath, K. V., Yip, B., Craib, K. J., O’Shaughnessy, M. V., Schechter, M. T., et al. (1998). Improved survival among HIV-infected individuals following initiation of antiretroviral therapy. JAMA: The Journal of the American Medical Association, 279, 450–454. doi:10.​1001/​jama.​279.​6.​450.CrossRef
go back to reference Howard, A. A., Arnsten, J. H., Vlahov, D., Rich, J. D., Schuman, P., Stone, V. E., et al. (2002). A prospective study of adherence and viral load in a large multi-center cohort of HIV-infected women. AIDS (London, England), 16, 2175–2182. doi:10.1097/00002030-200211080-00010. Howard, A. A., Arnsten, J. H., Vlahov, D., Rich, J. D., Schuman, P., Stone, V. E., et al. (2002). A prospective study of adherence and viral load in a large multi-center cohort of HIV-infected women. AIDS (London, England), 16, 2175–2182. doi:10.​1097/​00002030-200211080-00010.
go back to reference Inciardi, J. A., & Surratt, H. L. (2001). Cross-cultural approaches to harm reduction research: Some considerations on the Brazil experience. Substance Use & Misuse, 36, 201–212.CrossRef Inciardi, J. A., & Surratt, H. L. (2001). Cross-cultural approaches to harm reduction research: Some considerations on the Brazil experience. Substance Use & Misuse, 36, 201–212.CrossRef
go back to reference Kerr, T., Marshall, A., Walsh, J., Palepu, A., Tyndall, M., Montaner, J., et al. (2005). Determinants of HAART discontinuation among injection drug users. AIDS Care, 17, 539–549.PubMed Kerr, T., Marshall, A., Walsh, J., Palepu, A., Tyndall, M., Montaner, J., et al. (2005). Determinants of HAART discontinuation among injection drug users. AIDS Care, 17, 539–549.PubMed
go back to reference Kerr, T., Palepu, A., Barness, G., Walsh, J., Hogg, R., Montaner, J., et al. (2004). Psychosocial determinants of adherence to highly active antiretroviral therapy among injection drug users in Vancouver. Antiviral Therapy, 9, 407–414.PubMed Kerr, T., Palepu, A., Barness, G., Walsh, J., Hogg, R., Montaner, J., et al. (2004). Psychosocial determinants of adherence to highly active antiretroviral therapy among injection drug users in Vancouver. Antiviral Therapy, 9, 407–414.PubMed
go back to reference Knowlton, A., Arnsten, J., Eldred, L., Wilkinson, J., Gourevitch, M., Shade, S., et al. (2006). Individual, interpersonal, and structural correlates of effective HAART use among urban active injection DU. Journal of Acquired Immune Deficiency Syndromes, 41, 486–492. doi:10.1097/01.qai.0000186392.26334.e3.CrossRefPubMed Knowlton, A., Arnsten, J., Eldred, L., Wilkinson, J., Gourevitch, M., Shade, S., et al. (2006). Individual, interpersonal, and structural correlates of effective HAART use among urban active injection DU. Journal of Acquired Immune Deficiency Syndromes, 41, 486–492. doi:10.​1097/​01.​qai.​0000186392.​26334.​e3.CrossRefPubMed
go back to reference Latkin, C. A., Knowlton, A. R., Sherman, S. (2001). Routes of drug administration, differential affiliation, and lifestyle stability among cocaine and opiate users: Implications to HIV prevention. Journal of Substance Abuse, 13, 89–102.CrossRef Latkin, C. A., Knowlton, A. R., Sherman, S. (2001). Routes of drug administration, differential affiliation, and lifestyle stability among cocaine and opiate users: Implications to HIV prevention. Journal of Substance Abuse, 13, 89–102.CrossRef
go back to reference Lipsey, M. W., & Wilson, D. B. (2001). Practical meta-analysis. Thousand Oaks: Sage. Lipsey, M. W., & Wilson, D. B. (2001). Practical meta-analysis. Thousand Oaks: Sage.
go back to reference Liu, H., Longshore, D., Williams, J. K., Rivkin, I., Loeb, T., Warda, U. S., et al. (2006). Substance abuse and medication adherence among HIV-positive women with histories of child sexual abuse. AIDS and Behavior, 10, 279–286. doi:10.1007/s10461-005-9041-y.CrossRefPubMed Liu, H., Longshore, D., Williams, J. K., Rivkin, I., Loeb, T., Warda, U. S., et al. (2006). Substance abuse and medication adherence among HIV-positive women with histories of child sexual abuse. AIDS and Behavior, 10, 279–286. doi:10.​1007/​s10461-005-9041-y.CrossRefPubMed
go back to reference Lu, M., Safren, S. A., Skolnik, P. R., Rogers, W. H., Coady, W., Hardy, H., et al. (2008). Optimal recall period and response task for self-reported HIV medication adherence. AIDS and Behavior, 12, 86–94. doi:10.1007/s10461-007-9261-4.CrossRefPubMed Lu, M., Safren, S. A., Skolnik, P. R., Rogers, W. H., Coady, W., Hardy, H., et al. (2008). Optimal recall period and response task for self-reported HIV medication adherence. AIDS and Behavior, 12, 86–94. doi:10.​1007/​s10461-007-9261-4.CrossRefPubMed
go back to reference Lucas, G. M., Cheever, L. W., Chaisson, R. E., & Moore, R. D. (2001). Detrimental effects of continued illicit drug use on the treatment of HIV-1 infection. Journal of Acquired Immune Deficiency Syndromes, 27, 251–259.PubMed Lucas, G. M., Cheever, L. W., Chaisson, R. E., & Moore, R. D. (2001). Detrimental effects of continued illicit drug use on the treatment of HIV-1 infection. Journal of Acquired Immune Deficiency Syndromes, 27, 251–259.PubMed
go back to reference Lucas, G. M., Gebo, K. A., Chaisson, R. E., & Moore, R. D. (2002). Longitudinal assessment of the effects of drug and alcohol abuse on HIV-1 treatment outcomes in an urban clinic. AIDS (London, England), 16, 767–774. doi:10.1097/00002030-200203290-00012. Lucas, G. M., Gebo, K. A., Chaisson, R. E., & Moore, R. D. (2002). Longitudinal assessment of the effects of drug and alcohol abuse on HIV-1 treatment outcomes in an urban clinic. AIDS (London, England), 16, 767–774. doi:10.​1097/​00002030-200203290-00012.
go back to reference Malta, M., Strathdee, S. A., Magnanini, M. M. F., & Bastos, F. I. (2008). Adherence to antiretroviral therapy for HIV/AIDS among drug users—a systematic review. Addiction (Abingdon, England), 103, 1242–1257. doi:10.1111/j.1360-0443.2008.02269.x. Malta, M., Strathdee, S. A., Magnanini, M. M. F., & Bastos, F. I. (2008). Adherence to antiretroviral therapy for HIV/AIDS among drug users—a systematic review. Addiction (Abingdon, England), 103, 1242–1257. doi:10.​1111/​j.​1360-0443.​2008.​02269.​x.
go back to reference Martin, L. L., Hermandez, S. O., & Carrobles, J. A. (2005). Psychosocial variables in the antiretroviral treatment adherence in methadone maintenance patients [Article in Spanish]. Psicothema, 17, 575–581. Martin, L. L., Hermandez, S. O., & Carrobles, J. A. (2005). Psychosocial variables in the antiretroviral treatment adherence in methadone maintenance patients [Article in Spanish]. Psicothema, 17, 575–581.
go back to reference Martín-Sánchez, V., Ortega-Valín, L., Pérez-Simón Mdel, R., Mostaza-Fernández, J. L., Ortiz de Urbina-González, J. J., Rodríguez-María, M., et al. (2002). Factors predicting lack of adherence to highly active antiretroviral treatment. Enfermedades Infecciosas y Microbiología Clínica, 20, 491–497. [Article in Spanish].PubMed Martín-Sánchez, V., Ortega-Valín, L., Pérez-Simón Mdel, R., Mostaza-Fernández, J. L., Ortiz de Urbina-González, J. J., Rodríguez-María, M., et al. (2002). Factors predicting lack of adherence to highly active antiretroviral treatment. Enfermedades Infecciosas y Microbiología Clínica, 20, 491–497. [Article in Spanish].PubMed
go back to reference Mathers, B. M., Degenhardt, L., Phillips, B., Wiessing, L., Hickman, M., Strathdee, S. A., et al. (2008). Global epidemiology of injecting drug use and HIV among people who inject drugs: A systematic review. The Lancet, 372(9651), 1733–1745. doi:10.1016/S0140-6736(08)61311-2. Mathers, B. M., Degenhardt, L., Phillips, B., Wiessing, L., Hickman, M., Strathdee, S. A., et al. (2008). Global epidemiology of injecting drug use and HIV among people who inject drugs: A systematic review. The Lancet, 372(9651), 1733–1745. doi:10.​1016/​S0140-6736(08)61311-2.
go back to reference McNabb, J., Ross, J. W., Abriola, K., Turley, C., Nightingale, C. H., & Nicolau, D. P. (2001). Adherence to highly active antiretroviral therapy predicts virologic outcome at an inner-city human immunodeficiency virus clinic. Clinical Infectious Diseases, 33, 700–705. doi:10.1086/322590.CrossRefPubMed McNabb, J., Ross, J. W., Abriola, K., Turley, C., Nightingale, C. H., & Nicolau, D. P. (2001). Adherence to highly active antiretroviral therapy predicts virologic outcome at an inner-city human immunodeficiency virus clinic. Clinical Infectious Diseases, 33, 700–705. doi:10.​1086/​322590.CrossRefPubMed
go back to reference Miller, M. F., Haley, C., Koziel, M. J., & Rowley, C. F. (2005). Impact of hepatitis C virus on immune restoration in HIV-infected patients who start highly active antiretroviral therapy: A meta-analysis. Clinical Infectious Diseases, 41, 713–720. doi:10.1086/432618.CrossRefPubMed Miller, M. F., Haley, C., Koziel, M. J., & Rowley, C. F. (2005). Impact of hepatitis C virus on immune restoration in HIV-infected patients who start highly active antiretroviral therapy: A meta-analysis. Clinical Infectious Diseases, 41, 713–720. doi:10.​1086/​432618.CrossRefPubMed
go back to reference Mills, E. J., Nachega, J. B., Buchan, I., Orbinski, J., Attaran, A., Singh, S., et al. (2006). Adherence to antiretroviral therapy in sub-Saharan Africa and North America: A meta-analysis. JAMA : The Journal of the American Medical Association, 296, 679–690. doi:10.1001/jama.296.6.679.CrossRef Mills, E. J., Nachega, J. B., Buchan, I., Orbinski, J., Attaran, A., Singh, S., et al. (2006). Adherence to antiretroviral therapy in sub-Saharan Africa and North America: A meta-analysis. JAMA : The Journal of the American Medical Association, 296, 679–690. doi:10.​1001/​jama.​296.​6.​679.CrossRef
go back to reference Moatti, J. P., Carrieri, M. P., Spire, B., Gastaut, J. A., Cassuto, J. P., & Moreau, J. (2000). Adherence to HAART in French HIV-infected injecting DU: The contribution of buprenorphine drug maintenance treatment. The Manif 2000 study group. AIDS (London, England), 14, 151–155. doi:10.1097/00002030-200001280-00010. Moatti, J. P., Carrieri, M. P., Spire, B., Gastaut, J. A., Cassuto, J. P., & Moreau, J. (2000). Adherence to HAART in French HIV-infected injecting DU: The contribution of buprenorphine drug maintenance treatment. The Manif 2000 study group. AIDS (London, England), 14, 151–155. doi:10.​1097/​00002030-200001280-00010.
go back to reference New York State Department of Health. (2005). Adherence to antiretroviral therapy among substance users. New York (NY): New York State Department of Health. New York State Department of Health. (2005). Adherence to antiretroviral therapy among substance users. New York (NY): New York State Department of Health.
go back to reference Palella, F. J., Jr, Delaney, K. M., Moorman, A. C., Loveless, M. O., Fuhrer, J., Satten, G. A., et al. (1998). Declining morbidity and mortality among patients with advanced human immunodeficiency virus infection. HIV Outpatient Study Investigators. The New England Journal of Medicine, 338, 853–860. doi:10.1056/NEJM199803263381301.CrossRefPubMed Palella, F. J., Jr, Delaney, K. M., Moorman, A. C., Loveless, M. O., Fuhrer, J., Satten, G. A., et al. (1998). Declining morbidity and mortality among patients with advanced human immunodeficiency virus infection. HIV Outpatient Study Investigators. The New England Journal of Medicine, 338, 853–860. doi:10.​1056/​NEJM199803263381​301.CrossRefPubMed
go back to reference Palepu, A., Horton, N. J., Tibbetts, N., Meli, S., & Samet, J. H. (2004a). Uptake and adherence to highly active antiretroviral therapy among HIV-infected people with alcohol and other substance use problems: The impact of substance abuse treatment. Addiction (Abingdon, England), 99, 361–368. doi:10.1111/j.1360-0443.2003.00670.x. Palepu, A., Horton, N. J., Tibbetts, N., Meli, S., & Samet, J. H. (2004a). Uptake and adherence to highly active antiretroviral therapy among HIV-infected people with alcohol and other substance use problems: The impact of substance abuse treatment. Addiction (Abingdon, England), 99, 361–368. doi:10.​1111/​j.​1360-0443.​2003.​00670.​x.
go back to reference Palepu, A., Tyndall, M. W., Chan, K., Wood, E., Montaner, J. S., & Hogg, R. S. (2004b). Initiating highly active antiretroviral therapy and continuity of HIV care: The impact of incarceration and prison release on adherence and HIV treatment outcomes. Antiviral Therapy, 9, 713–719.PubMed Palepu, A., Tyndall, M. W., Chan, K., Wood, E., Montaner, J. S., & Hogg, R. S. (2004b). Initiating highly active antiretroviral therapy and continuity of HIV care: The impact of incarceration and prison release on adherence and HIV treatment outcomes. Antiviral Therapy, 9, 713–719.PubMed
go back to reference Palepu, A., Tyndall, M. W., Joy, R., Kerr, T., Wood, E., Press, N., et al. (2006). Antiretroviral adherence and HIV treatment outcomes among HIV/HCV co-infected injection DU: The role of methadone maintenance therapy. Drug and Alcohol Dependence, 84, 188–194. doi:10.1016/j.drugalcdep.2006.02.003.CrossRefPubMed Palepu, A., Tyndall, M. W., Joy, R., Kerr, T., Wood, E., Press, N., et al. (2006). Antiretroviral adherence and HIV treatment outcomes among HIV/HCV co-infected injection DU: The role of methadone maintenance therapy. Drug and Alcohol Dependence, 84, 188–194. doi:10.​1016/​j.​drugalcdep.​2006.​02.​003.CrossRefPubMed
go back to reference Palepu, A., Tyndall, M. W., Li, K., Yip, B., O’Shaughnessy, M. V., Schechter, M. T., et al. (2003a). Alcohol use and incarceration adversely affect HIV-1 RNA suppression among injection DU starting antiretroviral therapy. Journal of Urban Health, 80, 667–675. doi:10.1093/jurban/jtg073.PubMed Palepu, A., Tyndall, M. W., Li, K., Yip, B., O’Shaughnessy, M. V., Schechter, M. T., et al. (2003a). Alcohol use and incarceration adversely affect HIV-1 RNA suppression among injection DU starting antiretroviral therapy. Journal of Urban Health, 80, 667–675. doi:10.​1093/​jurban/​jtg073.PubMed
go back to reference Palepu, A., Tyndall, M., Yip, B., O’Shaughnessy, M. V., Hogg, R. S., & Montaner, J. S. (2003b). Impaired virologic response to highly active antiretroviral therapy associated with ongoing injection drug use. Journal of Acquired Immune Deficiency Syndromes, 32, 522–526. doi:10.1097/00126334-200304150-00009.CrossRefPubMed Palepu, A., Tyndall, M., Yip, B., O’Shaughnessy, M. V., Hogg, R. S., & Montaner, J. S. (2003b). Impaired virologic response to highly active antiretroviral therapy associated with ongoing injection drug use. Journal of Acquired Immune Deficiency Syndromes, 32, 522–526. doi:10.​1097/​00126334-200304150-00009.CrossRefPubMed
go back to reference Parruti, G., Manzoli, L., Toro, P. M., D’Amico, G., Rotolo, S., Graziani, V., et al. (2006). Long-term adherence to first-line highly active antiretroviral therapy in a hospital-based cohort: Predictors and impact on virologic response and relapse. AIDS Patient Care and STDs, 20, 48–56.CrossRefPubMed Parruti, G., Manzoli, L., Toro, P. M., D’Amico, G., Rotolo, S., Graziani, V., et al. (2006). Long-term adherence to first-line highly active antiretroviral therapy in a hospital-based cohort: Predictors and impact on virologic response and relapse. AIDS Patient Care and STDs, 20, 48–56.CrossRefPubMed
go back to reference Pearson, C. R., Micek, M. A., Simoni, J. M., Hoff, P. D., Matediana, E., Martin, D. P., et al. (2007a). Randomized control trial of peer-delivered, modified directly observed therapy for HAART in Mozambique. Journal of Acquired Immune Deficiency Syndromes, 46, 238–244. doi:10.1097/QAI.0b013e318153f7ba.CrossRefPubMed Pearson, C. R., Micek, M. A., Simoni, J. M., Hoff, P. D., Matediana, E., Martin, D. P., et al. (2007a). Randomized control trial of peer-delivered, modified directly observed therapy for HAART in Mozambique. Journal of Acquired Immune Deficiency Syndromes, 46, 238–244. doi:10.​1097/​QAI.​0b013e318153f7ba​.CrossRefPubMed
go back to reference Pearson, C. R., Simoni, J. M., Hoff, P., Kurth, A. E., & Martin, D. P. (2007b). Assessing antiretroviral adherence via electronic drug monitoring and self-report: An examination of key methodological issues. AIDS and Behavior, 11, 161–173. doi:10.1007/s10461-006-9133-3.CrossRefPubMed Pearson, C. R., Simoni, J. M., Hoff, P., Kurth, A. E., & Martin, D. P. (2007b). Assessing antiretroviral adherence via electronic drug monitoring and self-report: An examination of key methodological issues. AIDS and Behavior, 11, 161–173. doi:10.​1007/​s10461-006-9133-3.CrossRefPubMed
go back to reference Pinheiro, C., De-Carvalho-Leite, J., Drachler, M., & Silveira, V. L. (2002). Factors associated with adherence to antiretroviral therapy in HIV/AIDS patients: A cross-sectional study in southern Brazil. Brazilian Journal of Medical and Biological Research, 35, 1173–1181.PubMed Pinheiro, C., De-Carvalho-Leite, J., Drachler, M., & Silveira, V. L. (2002). Factors associated with adherence to antiretroviral therapy in HIV/AIDS patients: A cross-sectional study in southern Brazil. Brazilian Journal of Medical and Biological Research, 35, 1173–1181.PubMed
go back to reference Pradier, C., Carrieri, P., Bentz, L., Spire, B., Dellamonica, P., Moreau, J., et al. (2001). Impact of short-term adherence on virological and immunological success of HAART: A case study among French HIV-infected IDU. International Journal of STD and AIDS, 12, 324–328. doi:10.1258/0956462011923165.CrossRefPubMed Pradier, C., Carrieri, P., Bentz, L., Spire, B., Dellamonica, P., Moreau, J., et al. (2001). Impact of short-term adherence on virological and immunological success of HAART: A case study among French HIV-infected IDU. International Journal of STD and AIDS, 12, 324–328. doi:10.​1258/​0956462011923165​.CrossRefPubMed
go back to reference Purcell, D. W., Metsch, L. R., Latka, M., Santibanez, S., Gomez, C. A., Eldred, L., et al. (2004). Interventions for seropositive injectors-research and evaluation: An integrated behavioral intervention with HIV-positive injection DU to address medical care, adherence, and risk reduction. Journal of Acquired Immune Deficiency Syndromes, 37, S110–S118. doi:10.1097/01.qai.0000140609.44016.c4.CrossRefPubMed Purcell, D. W., Metsch, L. R., Latka, M., Santibanez, S., Gomez, C. A., Eldred, L., et al. (2004). Interventions for seropositive injectors-research and evaluation: An integrated behavioral intervention with HIV-positive injection DU to address medical care, adherence, and risk reduction. Journal of Acquired Immune Deficiency Syndromes, 37, S110–S118. doi:10.​1097/​01.​qai.​0000140609.​44016.​c4.CrossRefPubMed
go back to reference Quinn, T. C., Wawer, M. J., Sewankambo, N., Serwadda, D., Li, C., Wabwire-Mangen, F., et al. (2000). Viral load and heterosexual transmission of human immunodeficiency virus type 1. Rakai Project Study Group. The New England Journal of Medicine, 342, 921–929. doi:10.1056/NEJM200003303421303.CrossRefPubMed Quinn, T. C., Wawer, M. J., Sewankambo, N., Serwadda, D., Li, C., Wabwire-Mangen, F., et al. (2000). Viral load and heterosexual transmission of human immunodeficiency virus type 1. Rakai Project Study Group. The New England Journal of Medicine, 342, 921–929. doi:10.​1056/​NEJM200003303421​303.CrossRefPubMed
go back to reference R Core Development Core Team. (2004). R: A language and environment for statistical computing. Vienna, Austria: R-Foundation for Statistical Computing. Retrieved June 18, 2008, from: http://www.R-project.org. R Core Development Core Team. (2004). R: A language and environment for statistical computing. Vienna, Austria: R-Foundation for Statistical Computing. Retrieved June 18, 2008, from: http://​www.​R-project.​org.
go back to reference Simoni, J. M., Pantalone, D. W., Plummer, M. D., & Huang, B. (2007). A randomized controlled trial of a peer support intervention targeting antiretroviral medication adherence and depressive symptomatology in HIV-positive men and women. Health Psychology, 26, 488–495. doi:10.1037/0278-6133.26.4.488.CrossRefPubMed Simoni, J. M., Pantalone, D. W., Plummer, M. D., & Huang, B. (2007). A randomized controlled trial of a peer support intervention targeting antiretroviral medication adherence and depressive symptomatology in HIV-positive men and women. Health Psychology, 26, 488–495. doi:10.​1037/​0278-6133.​26.​4.​488.CrossRefPubMed
go back to reference Smith-Rohrberg, D., Mezger, J., Walton, M., Bruce, R. D., & Altice, F. L. (2006). Impact of Enhanced Services on Virologic Outcomes in a Directly Administered Antiretroviral Therapy Trial for HIV-Infected DU. Journal of Acquired Immune Deficiency Syndromes, 43, S48–S53. doi:10.1097/01.qai.0000248338.74943.85.CrossRefPubMed Smith-Rohrberg, D., Mezger, J., Walton, M., Bruce, R. D., & Altice, F. L. (2006). Impact of Enhanced Services on Virologic Outcomes in a Directly Administered Antiretroviral Therapy Trial for HIV-Infected DU. Journal of Acquired Immune Deficiency Syndromes, 43, S48–S53. doi:10.​1097/​01.​qai.​0000248338.​74943.​85.CrossRefPubMed
go back to reference Strathdee, S. A., Palepu, A., Cornelisse, P. G., Yip, B., O’Shaughnessy, M. V., Montaner, J. S., et al. (1998). Barriers to use of free antiretroviral therapy in injection drug users. JAMA : The Journal of the American Medical Association, 280, 547–549. doi:10.1001/jama.280.6.547.CrossRef Strathdee, S. A., Palepu, A., Cornelisse, P. G., Yip, B., O’Shaughnessy, M. V., Montaner, J. S., et al. (1998). Barriers to use of free antiretroviral therapy in injection drug users. JAMA : The Journal of the American Medical Association, 280, 547–549. doi:10.​1001/​jama.​280.​6.​547.CrossRef
go back to reference Stroup, D. F., Berlin, J. A., Morton, S. C., Olkin, I., Williamson, G. D., Rennie, D., et al. (2000). Meta-analysis of observational studies in epidemiology: A proposal for reporting. JAMA : The Journal of the American Medical Association, 283, 2008–2012. doi:10.1001/jama.283.15.2008.CrossRef Stroup, D. F., Berlin, J. A., Morton, S. C., Olkin, I., Williamson, G. D., Rennie, D., et al. (2000). Meta-analysis of observational studies in epidemiology: A proposal for reporting. JAMA : The Journal of the American Medical Association, 283, 2008–2012. doi:10.​1001/​jama.​283.​15.​2008.CrossRef
go back to reference van Houwelingen, H. C., Arends, L. R., & Stijnen, T. H. (2002). Tutorial in biostatistics. Advanced methods in meta-analysis: Multivariate approach and meta-regression. Statistics in Medicine, 21, 589–624. doi:10.1002/sim.1040.CrossRefPubMed van Houwelingen, H. C., Arends, L. R., & Stijnen, T. H. (2002). Tutorial in biostatistics. Advanced methods in meta-analysis: Multivariate approach and meta-regression. Statistics in Medicine, 21, 589–624. doi:10.​1002/​sim.​1040.CrossRefPubMed
go back to reference Vissoci Reiche, E. M., Bonametti, A. M., Morimoto, H. K., Morimoto, A. A., Wiechemann, S. L., Matsuo, T., et al. (2008). Epidemiological, immunological and virological characteristics, and disease progression of HIV-1/HCV-co-infectedc patients from a southern Brazilian population. International Journal of Molecular Medicine, 21, 387–395.PubMed Vissoci Reiche, E. M., Bonametti, A. M., Morimoto, H. K., Morimoto, A. A., Wiechemann, S. L., Matsuo, T., et al. (2008). Epidemiological, immunological and virological characteristics, and disease progression of HIV-1/HCV-co-infectedc patients from a southern Brazilian population. International Journal of Molecular Medicine, 21, 387–395.PubMed
go back to reference Vlahov, D., & Celentano, D. D. (2006). Access to highly active antiretroviral therapy for injection DU: Adherence, resistance, and death. Cadernos de Saude Publica, 22, 705–718.PubMed Vlahov, D., & Celentano, D. D. (2006). Access to highly active antiretroviral therapy for injection DU: Adherence, resistance, and death. Cadernos de Saude Publica, 22, 705–718.PubMed
go back to reference Wainberg, M. A., & Friedland, G. (1998). Public health implications of antiretroviral therapy and HIV drug resistance. JAMA: The Journal of the American Medical Association, 279, 1977–1983.CrossRef Wainberg, M. A., & Friedland, G. (1998). Public health implications of antiretroviral therapy and HIV drug resistance. JAMA: The Journal of the American Medical Association, 279, 1977–1983.CrossRef
go back to reference Wang, C., Vlahov, D., Galai, N., Bareta, J., Strathdee, S. A., Nelson, K. E., et al. (2004). Mortality in HIV-seropositive versus seronegative persons in the era of highly active antiretroviral therapy: Implications for when to initiate therapy. The Journal of Infectious Diseases, 190, 1046–1054. doi:10.1086/422848.CrossRefPubMed Wang, C., Vlahov, D., Galai, N., Bareta, J., Strathdee, S. A., Nelson, K. E., et al. (2004). Mortality in HIV-seropositive versus seronegative persons in the era of highly active antiretroviral therapy: Implications for when to initiate therapy. The Journal of Infectious Diseases, 190, 1046–1054. doi:10.​1086/​422848.CrossRefPubMed
go back to reference Wensing, A. M., van de Vijver, D. A., Angarano, G., Asjö, B., Balotta, C., Boeri, E., et al. (2005). Prevalence of drug-resistant HIV-1 variants in untreated individuals in Europe: Implications for clinical management. The Journal of Infectious Diseases, 192, 958–966.CrossRefPubMed Wensing, A. M., van de Vijver, D. A., Angarano, G., Asjö, B., Balotta, C., Boeri, E., et al. (2005). Prevalence of drug-resistant HIV-1 variants in untreated individuals in Europe: Implications for clinical management. The Journal of Infectious Diseases, 192, 958–966.CrossRefPubMed
go back to reference WHO/UNAIDS. (2007). Report on the global AIDS epidemic. Genebra: UNAIDS and WHO, 2007. WHO/UNAIDS. (2007). Report on the global AIDS epidemic. Genebra: UNAIDS and WHO, 2007.
go back to reference Wood, E., Hogg, R. S., Lima, V. D., Kerr, T., Yip, B., Marshall, B. D., et al. (2008). Highly active antiretroviral therapy and survival in HIV-infected injection drug users. JAMA: The Journal of the American Medical Association, 300, 550–554. doi:10.1001/jama.300.5.550.CrossRef Wood, E., Hogg, R. S., Lima, V. D., Kerr, T., Yip, B., Marshall, B. D., et al. (2008). Highly active antiretroviral therapy and survival in HIV-infected injection drug users. JAMA: The Journal of the American Medical Association, 300, 550–554. doi:10.​1001/​jama.​300.​5.​550.CrossRef
go back to reference Wood, E., Hogg, R. S., Yip, B., Harrigan, P. R., O’Shaughnessy, M. V., & Montaner, J. S. (2004a). The impact of adherence on CD4 cell count responses among HIV-infected patients. Journal of Acquired Immune Deficiency Syndromes, 35, 261–268. doi:10.1097/00126334-200403010-00006.CrossRefPubMed Wood, E., Hogg, R. S., Yip, B., Harrigan, P. R., O’Shaughnessy, M. V., & Montaner, J. S. (2004a). The impact of adherence on CD4 cell count responses among HIV-infected patients. Journal of Acquired Immune Deficiency Syndromes, 35, 261–268. doi:10.​1097/​00126334-200403010-00006.CrossRefPubMed
go back to reference Wood, E., Montaner, J. S., Bangsberg, D. R., Tyndall, M. W., Strathdee, S. A., O’Shaughnessy, M. V., et al. (2003a). Expanding access to HIV antiretroviral therapy to marginalised populations in the developed world. AIDS (London, England), 17, 2419–2427. doi:10.1097/00002030-200311210-00003. Wood, E., Montaner, J. S., Bangsberg, D. R., Tyndall, M. W., Strathdee, S. A., O’Shaughnessy, M. V., et al. (2003a). Expanding access to HIV antiretroviral therapy to marginalised populations in the developed world. AIDS (London, England), 17, 2419–2427. doi:10.​1097/​00002030-200311210-00003.
go back to reference Wood, E., Montaner, J. S., Yip, B., Tyndall, M. W., Schechter, M. T., O’Shaughnessy, M. V., et al. (2003b). Adherence and plasma HIV RNA responses to highly active antiretroviral therapy among HIV-1 infected injection DU. Canadian Medical Association Journal, 169, 656–661.PubMed Wood, E., Montaner, J. S., Yip, B., Tyndall, M. W., Schechter, M. T., O’Shaughnessy, M. V., et al. (2003b). Adherence and plasma HIV RNA responses to highly active antiretroviral therapy among HIV-1 infected injection DU. Canadian Medical Association Journal, 169, 656–661.PubMed
go back to reference Wood, E., Montaner, J. S., Yip, B., Tyndall, M. W., Schechter, M. T., O’Shaughnessy, M. V., et al. (2004b). Adherence to antiretroviral therapy and CD4 T-cell count responses among HIV-infected injection drug users. Antiviral Therapy, 9, 229–235.PubMed Wood, E., Montaner, J. S., Yip, B., Tyndall, M. W., Schechter, M. T., O’Shaughnessy, M. V., et al. (2004b). Adherence to antiretroviral therapy and CD4 T-cell count responses among HIV-infected injection drug users. Antiviral Therapy, 9, 229–235.PubMed
Metadata
Title
Adherence to Antiretroviral Therapy Among HIV-Infected Drug Users: A Meta-Analysis
Authors
Monica Malta
Monica M. F. Magnanini
Steffanie A. Strathdee
Francisco I. Bastos
Publication date
01-08-2010
Publisher
Springer US
Published in
AIDS and Behavior / Issue 4/2010
Print ISSN: 1090-7165
Electronic ISSN: 1573-3254
DOI
https://doi.org/10.1007/s10461-008-9489-7

Other articles of this Issue 4/2010

AIDS and Behavior 4/2010 Go to the issue
Obesity Clinical Trial Summary

At a glance: The STEP trials

A round-up of the STEP phase 3 clinical trials evaluating semaglutide for weight loss in people with overweight or obesity.

Developed by: Springer Medicine

Highlights from the ACC 2024 Congress

Year in Review: Pediatric cardiology

Watch Dr. Anne Marie Valente present the last year's highlights in pediatric and congenital heart disease in the official ACC.24 Year in Review session.

Year in Review: Pulmonary vascular disease

The last year's highlights in pulmonary vascular disease are presented by Dr. Jane Leopold in this official video from ACC.24.

Year in Review: Valvular heart disease

Watch Prof. William Zoghbi present the last year's highlights in valvular heart disease from the official ACC.24 Year in Review session.

Year in Review: Heart failure and cardiomyopathies

Watch this official video from ACC.24. Dr. Biykem Bozkurt discusses last year's major advances in heart failure and cardiomyopathies.