E-viri
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Esber, Allahna; Polyak, Christina; Kiweewa, Francis; Maswai, Jonah; Owuoth, John; Maganga, Lucas; Adamu, Yakubu; Hickey, Patrick W; Ake, Julie A; Crowell, Trevor A
Clinical infectious diseases, 08/2019, Letnik: 69, Številka: 5Journal Article
Abstract Background World Health Organization (WHO) guidelines identify human immunodeficiency virus (HIV) viral load <1000 copies/mL as the goal of antiretroviral therapy (ART). However, the clinical implications of viremia below this threshold are unclear in the African context. We examined factors associated with persistent low-level viremia (pLLV) and quantified the risk of subsequent virologic. Methods The African Cohort Study enrolled HIV-infected adults at clinics in Uganda, Kenya, Tanzania, and Nigeria, with assessments every 6 months. We evaluated participants prescribed ART for at least 6 months without virologic failure for pLLV. We used multinomial logistic regression to evaluate associations between prespecified factors of interest and 3 levels of pLLV (<200, 200–499, and 500–999 copies/mL). We used Anderson-Gill extended Cox proportional hazards to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) for viremia category associations with time to failure. Results We included 1511 participants with 4382 person-years of follow-up. PLLV <200 copies/mL was observed at 20% of visits while 2% of visits had pLLV 200–499 and 500–999 copies/mL each, with substantial variation by site. Protease inhibitor–containing ART was associated with increased risk of pLLV. Compared to undetectable viral load, pLLV ≥200 copies/mL doubled the risk of developing virologic failure (pLLV 200–499: HR, 1.81 95% CI, 1.08–3.02); pLLV 500–999: HR, 2.36 95% CI, 1.52–3.67). Conclusions Participants with pLLV ≥200 copies/mL were at increased risk of subsequent virologic failure. Optimized HIV care in this setting should target viral suppression <200 copies/mL. Among HIV-infected participants on antiretroviral therapy enrolled in the African Cohort Study, having persistent low-level viremia >200 copies/mL doubled the risk of developing virologic failure.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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