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BACKGROUND: To date there remains much ambiguity in the literature regarding the immunological interplay between SARS-CoV-2 and HIV and the true risk posed to coinfected individuals. There has been little conclusive data regarding the use of CD4 cell count and HIV viral load stratification as predictors of COVID-19 severity in this cohort. METHODS: We performed a retrospective, observational cohort study on people living with HIV (PLWH) who contracted COVID-19 in central and eastern Europe. We enrolled 536 patients from 16 countries using an online survey. We evaluated patient demographics, HIV characteristics and COVID-19 presentation and outcomes. Statistical analysis was performed using SPSS 20.1. RESULTS: The majority of the study cohort were male (76.4%) and 152 (28.3%) had a significant medical comorbidity. Median CD4 cell count at COVID-19 diagnosis was 605 cells/µL [interquartile range (IQR) 409-824]. The majority of patients on antiretroviral therapy (ART) were virally suppressed (92%). In univariate analysis, CD4 cell count <350 cells/µL was associated with higher rates of hospitalization (p < 0.0001) and respiratory failure (p < 0.0001). Univariate and multivariate analyses found that an undetectable HIV VL was associated with a lower rate of hospitalization (p < 0.0001), respiratory failure (p < 0.0001), ICU admission or death (p < 0.0001), and with a higher chance of full recovery (p < 0.0001). CONCLUSION: We can conclude that detectable HIV viral load was an independent risk factor for severe COVID-19 illness and can be used as a prognostic indicator in this cohort.
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COVID-19 , Infecções por HIV , Insuficiência Respiratória , Humanos , Masculino , Feminino , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Estudos Retrospectivos , Teste para COVID-19 , COVID-19/epidemiologia , COVID-19/complicações , SARS-CoV-2 , Contagem de Linfócito CD4 , Europa Oriental , Carga ViralRESUMO
OBJECTIVES: We aimed to assess the extent of integration of non-communicable disease (NCD) assessment and management in HIV clinics across Europe. METHODS: A structured electronic questionnaire with 41 multiple-choice and rating-scale questions assessing NCD assessment and management was sent to 88 HIV clinics across the WHO European Region during March-May 2023. One response per clinic was collected. RESULTS: In all, 51 clinics from 34 countries with >100 000 people with HIV under regular follow-up responded. Thirty-seven clinics (72.6%) reported shared NCD care responsibility with the general practitioner. Systematic assessment for NCDs and integration of NCD management were common overall [median agreement 80%, interquartile range (IQR): 55-95%; and 70%, IQR: 50-88%, respectively] but were lowest in central eastern and eastern Europe. Chronic kidney disease (median agreement 96%, IQR: 85-100%) and metabolic disorders (90%, IQR: 75-100%) were regularly assessed, while mental health (72%, IQR: 63-85%) and pulmonary diseases (52%, IQR: 40-75%) were less systematically assessed. Some essential diagnostic tests such as glycated haemoglobin (HbA1c) for diabetes (n = 38/51, 74.5%), proteinuria for kidney disease (n = 30/51, 58.8%) and spirometry for lung disease (n = 11/51, 21.6%) were only employed by a proportion of clinics. The most frequent barriers for integrating NCD care were the lack of healthcare workers (n = 17/51, 33.3%) and lack of time during outpatient visits (n = 12/51, 23.5%). CONCLUSION: Most HIV clinics in Europe systematically assess and manage NCDs. People with HIV appear to be screened more frequently than the general population at the same age. There are, however, larger gaps among eastern European clinics in general and for clinics in all regions related to mental health, pulmonary diseases and the employment of some essential diagnostic tests.
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Infecções por HIV , Doenças não Transmissíveis , Humanos , Doenças não Transmissíveis/terapia , Doenças não Transmissíveis/epidemiologia , Infecções por HIV/diagnóstico , Infecções por HIV/terapia , Infecções por HIV/complicações , Infecções por HIV/epidemiologia , Europa (Continente) , Inquéritos e Questionários , Organização Mundial da Saúde , Feminino , Masculino , Adulto , Insuficiência Renal Crônica/terapia , Insuficiência Renal Crônica/diagnóstico , Insuficiência Renal Crônica/epidemiologiaRESUMO
OBJECTIVES: The aim of this international multicentre study was to review potential drug-drug interactions (DDIs) for real-life coadministration of combination antiretroviral therapy (cART) and coronavirus disease 2019 (COVID-19)-specific medications. METHODS: The Euroguidelines in Central and Eastern Europe Network Group initiated a retrospective, observational cohort study of HIV-positive patients diagnosed with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Data were collected through a standardized questionnaire and DDIs were identified using the University of Liverpool's interaction checker. RESULTS: In total, 524 (94.1% of 557) patients received cART at COVID-19 onset: 117 (22.3%) were female, and the median age was 42 (interquartile range 36-50) years. Only 115 (21.9%) patients were hospitalized, of whom 34 required oxygen therapy. The most frequent nucleoside reverse transcriptase inhibitor (NRTI) backbone was tenofovir disoproxil fumarate (TDF)/tenofovir alafenamide (TAF) with lamivudine or emtricitabine (XTC) (79.3%) along with an integrase strand transfer inhibitor (INSTI) (68.5%), nonnucleoside reverse transcriptase inhibitor (NNRTI) (17.7%), protease inhibitor (PI) (13.7%) or other (2.5%). In total, 148 (28.2%) patients received COVID-19-specific treatments: corticosteroids (15.7%), favipiravir (7.1%), remdesivir (3.1%), hydroxychloroquine (2.7%), tocilizumab (0.6%) and anakinra (0.2%). In total, 62 DDI episodes were identified in 58 patients (11.8% of the total cohort and 41.9% of the COVID-19-specific treatment group). The use of boosted PIs and elvitegravir accounted for 43 DDIs (29%), whereas NNRTIs were responsible for 14 DDIs (9.5%). CONCLUSIONS: In this analysis from the Central and Eastern European region on HIV-positive persons receiving COVID-19-specific treatment, it was found that potential DDIs were common. Although low-dose steroids are mainly used for COVID-19 treatment, comedication with boosted antiretrovirals seems to have the most frequent potential for DDIs. In addition, attention should be paid to NNRTI coadministration.
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Fármacos Anti-HIV , Tratamento Farmacológico da COVID-19 , Infecções por HIV , Soropositividade para HIV , Adenina/uso terapêutico , Adulto , Fármacos Anti-HIV/uso terapêutico , Interações Medicamentosas , Emtricitabina/uso terapêutico , Feminino , Infecções por HIV/tratamento farmacológico , Soropositividade para HIV/tratamento farmacológico , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Inibidores da Transcriptase Reversa , SARS-CoV-2 , Tenofovir/efeitos adversosRESUMO
INTRODUCTION: People living with HIV (PLWH) are at higher risk of poorer COVID-19 outcomes. Vaccination is a safe and effective method of prevention against many infectious diseases, including COVID-19. Here we investigate the strategies for national COVID-19 vaccination programmes across central and eastern Europe and the inclusion of PLWH in vaccination programmes. METHODS: The Euroguidelines in Central and Eastern Europe Network Group consists of experts in the field of infectious diseases from 24 countries in the region. Between 1 November 2020 and 19 March 2021 the group proceeded an on-line survey consisting of 20 questions. RESULTS: Twenty-two countries (out of 24 invited) participated in the survey and 20/22 countries in the period between December 2020 and March 2021 had already started their COVID-19 vaccination programme. In total, seven different vaccines were used by participating countries. In 17/21 countries (81%), vaccinated persons were centralized within the national registry. In 8/21 countries (38%) PLWH were prioritized for vaccination (the Czech Republic, Greece, Hungary, Lithuania, Montenegro, Romania, Slovakia, Slovenia) and the Czech Republic, Greece and Serbia had put in place national guidelines for vaccination of PLWH. In 14/20 countries (70%) vaccination was only provided by designated centres. Eighteen respondents (18/21; 85.7%) reported that they planned to follow up HIV patients vaccinated against COVID-19, mainly by measuring antibody levels and checking COVID-19 incidence (11/21; 52.3%). CONCLUSIONS: This survey-based study suggests that there are significant differences in terms of prioritizing PLWH, the types of vaccines used, vaccination coverage, and the development and implementation of a vaccination programmes within the region. Regardless of heterogenicity and existing barriers within the region, systematic vaccination in PLWH should have the highest priority, especially in those with severe immunodeficiency, risk factors, and in the elderly, aiming for prompt and high vaccination coverage.
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COVID-19 , Infecções por HIV , Idoso , COVID-19/epidemiologia , COVID-19/prevenção & controle , Vacinas contra COVID-19 , Europa (Continente)/epidemiologia , Europa Oriental/epidemiologia , Infecções por HIV/complicações , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , Humanos , VacinaçãoRESUMO
BACKGROUND: Data on the effectiveness of second-line antiretroviral therapy (ART) in resource-limited countries of Eastern Europe is limited. Objective of this study was to evaluate virological outcomes of second-line ART in Georgia. METHODS: We conducted retrospective analysis using routinely available program data. Study included adult HIV-infected patients with confirmed HIV drug resistance, who were switched to second-line ART from August 2005 to December 2010. Patients were followed until July 1, 2011. Primary outcome was achievement of viral suppression. Demographic, clinical, laboratory and adherence data were abstracted from medical and program records. Adherence was expressed as percentage based on medication refill data, and was calculated as days supply of medications dispensed divided by days between prescription fills. Predictors of primary outcome were assessed in modified Poisson regression analysis. RESULTS: A total of 84 patients were included in the study. Among them 71.4% were men and 62% had history of IDU. All patients were receiving non-nucleoside reverse transcriptase based regimen as initial ART. The mean 6-month adherence prior to virologic failure was 75%, with 31% of patients showing 100% adherence. All patients were switched to protease inhibitor based regimens. Patients were followed for median 27 months. Over this period 9 (10.7%) patients died. Among 80 patients remaining alive at least 6 month after ART regimen switch, 72 (90%) patients ever reached undetectable viral load. The mean first 6-month adherence on second-line treatment was 81%, with 47.5% of patients showing 100% adherence. The proportion of patients achieving viral suppression after 6, 12, 24 and 36 months of second-line ART did not vary significantly ranging from 79 to 83%. Percentage of IDUs achieving viral suppression ranged from 75% and 83%. Factors associated with failure to achieve viral suppression at 6-months of second-line ART were: adherence <80% (Risk ratio [RR] 5.09, 95% CI: 1.89-13.70) and viral load >100,000 at the time of treatment failure (RR 3.39, 95% CI: 1.46-7.89). CONCLUSIONS: The study demonstrated favourable virological outcomes of the second-line ART in Georgia. Majority of patients, including IDUs, achieved sustained virological response over 36 month period. The findings highlight the need of improving adherence.
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BACKGROUND: The aim of the study was to assess socio-demographical characteristics, clinical presentation, and outcomes in patients diagnosed with mpox. METHODS: A survey on patients diagnosed with mpox was performed in 14 countries from Central and Eastern Europe. Data was compared according to HIV status and country of origin (EU vs. non-EU). Mpox diagnosis was confirmed by RT-PCR from oropharyngeal swabs, skin lesions, and other body fluids. RESULTS: Out of 154 patients confirmed with mpox in 2022, 99.3% were males, with a median age (years) of 35 (IQR 30-39), 90.2% MSM and 48.7% PLWH. Compared to HIV-negative subjects, PLWH had more frequent high-risk behaviours:chemsex (p = 0.015), group sex (p = 0.027), and a history of sexually transmitted infections (STIs) (p = 0.004). Persons from EU were more often PLWH (p = 0.042), MSM (p < 0.0001), had multiple sexual partners (p = 0.025), practiced chemsex (p = 0.008) or group-sex (p = 0.005) and had more often history of STIs (p < 0.0001). The median CD4 cell count/mL at mpox diagnosis was 713 (IQR 486-996) and 73.5% had undetectable HIV VL. The commonest clinical features were fever (108 cases), lymphadenopathy (78), and vesiculo-pustular rash: penile (76), perianal (48), limbs (67). Fifty-one (31%) persons were hospitalized due to complications or epidemiological reasons. Three patients received tecovirimat or cidofovir. The outcome was favorable for all patients, including 4 with severe forms. CONCLUSIONS: Mpox was diagnosed predominantly in young MSM, with high-risk behaviors and history of STIs. Effective contact tracing and vaccination are important strategic pillars to control mpox outbreaks.
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Surtos de Doenças , Humanos , Masculino , Feminino , Adulto , Europa Oriental/epidemiologia , Infecções por HIV/epidemiologia , Europa (Continente)/epidemiologia , Condiloma Acuminado/epidemiologia , Infecções Sexualmente Transmissíveis/epidemiologia , Infecções Sexualmente Transmissíveis/diagnóstico , Pessoa de Meia-IdadeRESUMO
With no expected vaccine for HIV in the near future, we aimed to define the current situation and challenges for pre- and post-exposure prophylaxis (PrEP and PEP) in Central and Eastern Europe (CEE). The Euroguidelines CEE Network Group members were invited to respond to a 27-item survey including questions on PrEP (response rate 91.6%). PrEP was licensed in 68.2%; 95 centers offered PrEP and the estimated number on PrEP was around 9000. It was available in daily (40.1%), on-demand (13.3%), or both forms (33.3%). The access rate was <1−80%. Three major barriers for access were lack of knowledge/awareness among people who are in need (59.1%), not being reimbursed (50.0%), and low perception of HIV risk (45.5%). Non-occupational PEP was available in 86.4% and was recommended in the guidelines in 54.5%. It was fully reimbursed in 36.4%, only for accidental exposures in 40.9%, and was not reimbursed in 22.72%. Occupational PEP was available in 95.5% and was reimbursed fully. Although PrEP scale-up in the region has gained momentum, a huge gap exists between those who are in need of and those who can access PrEP. Prompt action is required to address the urgent need for PrEP scale-up in the CEE region.
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The ECEE Network Group investigated early provision of HIV care to war refugees migrating from Ukraine in Central and Eastern Europe (CEE) through an online survey. Fourteen countries admitting war refugees from Ukraine on March 31, 2022, completed the survey. Most centers (86%) organized provision of same day antiretroviral therapy (ART) for at least 30âdays (77%), but indicated that it may affect the local HIV care. CEE countries put effective emergency mechanisms, which need continuation with international support.
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Infecções por HIV , Refugiados , Europa (Continente) , Europa Oriental , Infecções por HIV/tratamento farmacológico , Humanos , Ucrânia/epidemiologiaRESUMO
Chronic kidney disease (CKD) is a significant cause of morbidity and mortality among patients infected with human immunodeficiency virus (HIV). The Central and East Europe (CEE) region consists of countries with highly diversified HIV epidemics, health care systems and socioeconomic status. The aim of the present study was to describe variations in CKD burden and care between countries. The Euroguidelines in the CEE Network Group includes 19 countries and was initiated to improve the standard of care for HIV infection in the region. Information on kidney care in HIV-positive patients was collected through online surveys sent to all members of the Network Group. Almost all centres use regular screening for CKD in all HIV (+) patients. Basic diagnostic tests for kidney function are available in the majority of centres. The most commonly used method for eGFR calculation is the Cockcroft-Gault equation. Nephrology consultation is available in all centres. The median frequency of CKD was 5% and the main cause was comorbidity. Haemodialysis was the only modality of treatment for kidney failure available in all ECEE countries. Only 39% of centres declared that all treatment options are available for HIV+ patients. The most commonly indicated barrier in kidney care was patients' noncompliance. In the CEE region, people living with HIV have full access to screening for kidney disease but there are important limitations in treatment. The choice of dialysis modality and access to kidney transplantation are limited. The main burden of kidney disease is unrelated to HIV infection. Patient care can be significantly improved by addressing noncompliance.
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Infecções por HIV , Nefrologia , Insuficiência Renal Crônica , Estudos Transversais , Europa (Continente)/epidemiologia , Europa Oriental/epidemiologia , Infecções por HIV/prevenção & controle , Infecções por HIV/terapia , Humanos , Insuficiência Renal Crônica/epidemiologia , Insuficiência Renal Crônica/terapiaRESUMO
HIV-positive patients may present lungs with multiple infections, which may hinder differential diagnoses and the choice of treatment in the course of COVID-19, especially in countries with limited access to high-standard healthcare. Here, we aim to investigate the association between radiological changes and poor COVID-19 outcomes among HIV-positive patients from Central and Eastern Europe. Between November 2020 and May 2021, the Euroguidelines in Central and Eastern Europe Network Group started collecting observational data on HIV and COVID-19 co-infections. In total, 16 countries from Central and Eastern European submitted data (eCRF) on 557 HIV-positive patients. The current analyses included patients who had a radiological examination performed. Logistic regression models were used to identify the factors associated with death, ICU admission, and partial recovery (poor COVID-19 outcomes). Factors that were significant in the univariate models (p < 0.1) were included in the multivariate model. Radiological data were available for 224 (40.2%) patients, 108 (48.2%) had computed tomography, and 116 (51.8%) had a chest X-ray. Of these, 211 (94.2%) were diagnosed using RT-PCR tests, 212 (94.6%) were symptomatic, 123 (55.6%) were hospitalized, 37 (16.6%) required oxygen therapy, and 28 (13.1%) either died, were admitted to ICU, or only partially recovered. From the radiologist's description, 138 (61.6%) patients had typical radiological changes, 18 (8.0%) atypical changes, and 68 (30.4%) no changes. In the univariate models, CD4 count (OR = 0.86 [95% CI: 0.76−0.98]), having a comorbidity (2.33 [1.43−3.80]), HCV and/or HBV co-infection (3.17 [1.32−7.60]), being currently employed (0.31 [0.13−0.70]), being on antiretroviral therapy (0.22 [0.08−0.63]), and having typical (3.90 [1.12−13.65]) or atypical (10.8 [2.23−52.5]) radiological changes were all significantly associated with poor COVID-19 outcomes. In the multivariate model, being on antiretroviral therapy (OR = 0.20 [95% CI:0.05−0.80]) decreased the odds of poor COVID-19 outcomes, while having a comorbidity (2.12 [1.20−3.72]) or either typical (4.23 [1.05−17.0]) or atypical (6.39 [1.03−39.7]) radiological changes (vs. no changes) increased the odds of poor COVID-19 outcomes. Among HIV patients diagnosed with symptomatic SARS-CoV-2 infection, the presence of either typical or atypical radiological COVID-19 changes independently predicted poorer outcomes.
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COVID-19 , Infecções por HIV , Contagem de Linfócito CD4 , COVID-19/epidemiologia , Europa Oriental , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Humanos , SARS-CoV-2RESUMO
We assessed trends in causes and outcomes of hospitalization among people living with HIV (PLWH) admitted to the Infectious Diseases, AIDS and Clinical Immunology Research Center (IDACIRC) in Tbilisi, Georgia. Retrospective analysis included adult PLWH admitted to IDACIRC for at least 24 h. Internationally validated categorization was used to split AIDS admissions into mild, moderate, and severe AIDS. A total of 2085 hospitalizations among 1123 PLWH were registered over 2012-2017 with 65.1% (731/1123) of patients presenting with CD4 count <200. Of 2085 hospitalizations, 931 (44.7%) were due to AIDS-defining illnesses. In 2012, AIDS conditions accounted for 50.3% of admissions compared to 41.6% in 2017 (p = 0.16). Overall, 167 hospitalizations (8.0%) resulted in lethal outcome. AIDS admissions had higher mortality than non-AIDS admissions (11.5% vs 5.2%, p < 0.0001). Among 167 deceased patients, 137 (82.0%) had CD4 count <200 at admission. In multivariate analysis, factors significantly associated with mortality included severe AIDS versus non-AIDS admission (OR 2.81, 95% CI: 1.10-7.15), CD4 cell counts <50 (OR 4.34, 95% CI: 2.52-7.47), and 50-100 (OR 2.37, 95% CI: 1.27-4.42) versus >200. Active AIDS disease remains a significant cause of hospitalization and fatal outcome in Georgia. Earlier diagnosis of HIV is critical for decreasing AIDS hospitalizations and mortality.
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Infecções por HIV , Contagem de Linfócito CD4 , República da Geórgia , Infecções por HIV/epidemiologia , Hospitalização , Humanos , Encaminhamento e Consulta , Estudos RetrospectivosRESUMO
OBJECTIVE: Conduct an active case finding study in Tbilisi, Georgia, for pulmonary tuberculosis (TB) among people living with HIV (PLWH). METHODS: Newly diagnosed HIV patients were assessed for symptoms and asked to submit sputum samples for smear microscopy, culture, and molecular diagnostic testing (Xpert MTB/RIF). RESULTS: Among 276 PLWH, 131 agreed to participate and 103 submitted sputum samples. Most participants were male (70%) and mean age of 43 years. There were high rates of a positive hepatitis C virus (HCV) antibody test (46%) and the median CD4 count was 122 cells/mm3. A total of 15 (11.5%) persons were diagnosed with pulmonary TB, including 1 each with multidrug-resistant and isoniazid-resistant disease. Twelve had a positive culture for Mycobacterium tuberculosis and Xpert TB/RIF assay, and 4 had positive smear microscopy. Patients with pulmonary TB were more likely to use injection drugs (67% vs 36%, P = .02) and have a positive HCV antibody (73% vs 42%, P = .02). The presence and absence of any TB symptom had a sensitivity and negative predictive value for TB of 93% and 98%, respectively. CONCLUSION: Our findings highlight the high prevalence of TB among newly diagnosed HIV-infected patients in an area with high rates of drug-resistant TB and the utility of an active case finding strategy for TB diagnosis.
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Coinfecção/mortalidade , Infecções por HIV/complicações , Infecções por HIV/mortalidade , Anticorpos Anti-Hepatite C/sangue , Hepatite C/mortalidade , Adulto , Terapia Antirretroviral de Alta Atividade , Causas de Morte , Estudos de Coortes , Coinfecção/imunologia , Comorbidade , Feminino , Seguimentos , República da Geórgia/epidemiologia , Infecções por HIV/tratamento farmacológico , Hepacivirus , Hepatite C/sangue , Hepatite C/imunologia , Humanos , Estimativa de Kaplan-Meier , Masculino , Estudos RetrospectivosRESUMO
Since 2004, the country of Georgia has provided antiretroviral therapy (ART) to all patients in need. A nationwide retrospective cohort study was conducted to assess the effect of universal access to ART on patterns of mortality and causes of death among HIV-infected individuals in Georgia. All known HIV-infected adult individuals (age ≥18 years) diagnosed from 1989 through 2012 were included. Rates and causes of death were determined using routinely collected data from the national HIV/AIDS database. Causes of death were classified according to the Coding of Death in HIV (CoDe) protocol. Between 1989 and 2012, 3,554 HIV-infected adults were registered in Georgia contributing to 13,572 person-years (PY) of follow-up. A total of 779 deaths were registered during follow-up. The mortality rate peaked in 2004 with 10.74 deaths per 100 PY (95% CI: 7.92-14.24) and significantly decreased after the universal availability of ART to 4.02 per 100 PY (95% CI: 3.28-4.87) in 2012. In multivariate analysis the strongest predictor of mortality was having AIDS at the time of HIV diagnosis (hazard ratio: 5.69, 95% CI: 4.72-6.85). AIDS-related diseases accounted for the majority of deaths (n=426, 54.7%). Tuberculosis (TB) was the leading cause of death accounting for 21% of the total deaths reported. Universal access to ART significantly reduced mortality among HIV-infected patients in Georgia. However, overall mortality rates remain high primarily due to late diagnosis, and TB remains a significant cause of death. Improving rates of early HIV diagnosis and ART initiation may further decrease mortality as well as prevent new HIV and TB infections.
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Causas de Morte , Infecções por HIV/mortalidade , Adolescente , Adulto , Estudos de Coortes , Feminino , República da Geórgia/epidemiologia , Humanos , Masculino , Estudos Retrospectivos , Análise de Sobrevida , Adulto JovemRESUMO
INTRODUCTION: There is little information on adherence to antiretroviral therapy (ART) in the Eastern European region. This prospective study evaluated multiple measures of adherence and their association with viral suppression among HIV patients in Georgia. METHODS: A prospective cohort study enrolled 100 consecutive antiretroviral-naïve adult (age ≥ 18 years) patients, who were followed for three months. Adherence was assessed by medication refill and three self-report measures (an AIDS Clinical Trial Group [ACTG] tool for four-day adherence, a visual analogue scale [VAS] and a rating task for 30-day adherence). The VAS represented a line anchored by 0 and 100% corresponding to the percentage of prescribed doses taken. The rating task asked patients to rate their ability to take all medications as prescribed, with responses categorized into six levels of adherence: very poor (0%), poor (20%), fair (40%), good (60%), very good (80%) and excellent (100%). Patients with adherence of ≥ 95% by medication refill, ACTG and VAS, and ≥ 80% by rating task, were defined as adherent. RESULTS: Of 100 patients enrolled, eight had missing data and were excluded from analysis. Among the remaining 92 patients, the median age was 39 years, and 70% were men. Major modes of HIV acquisition were injection drug use (IDU; 47.3%) and heterosexual contact (44.1%). The proportions of adherent patients were as follows: 68% by medication refill, 90% by ACTG questionnaire, 38% by VAS and 42% by rating task. On average, four months after commencing ART, 52 (56.5%) patients had a viral load <400 copies/ml and 26 (28.3%) patients had a viral load <50 copies/ml. Of 43 persons with a history of IDU, 22 (51.2%) reached a viral load of <400 copies/ml. In multivariate analysis, only refill adherence was a statistically significant predictor of viral suppression of <400 copies/ml: the risk ratio was 1.7 (95% CI: 1.1-2.8). Refill adherence, VAS and rating task were associated with viral suppression of <50 copies/ml. Non-IDUs were twice as likely to achieve viral load <50 copies/ml compared to IDUs. Refill adherence had the largest area under the receiver-operating characteristic curve for predicting viral suppression. CONCLUSIONS: Medication refill adherence was the strongest predictor of viral suppression. IDUs can achieve optimal virologic outcomes, but may require additional adherence support.