E-viri
Recenzirano
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Murri, Rita; Lepri, Alessandro Cozzi; Cicconi, Paola; Poggio, Antonio; Arlotti, Massimo; Tositti, Giulia; Santoro, Domenico; Soranzo, Maria Luisa; Rizzardini, Giuliano; Colangeli, Vincenzo; Montroni, Maria; Monforte, Antonella D'Arminio
Journal of acquired immune deficiency syndromes (1999), 2006-Jan-01, Letnik: 41, Številka: 1Journal Article
To assess the risk of clinical progression (CP) according to the duration of time spent without complete viral load (VL) suppression compared with that associated with periods of stably suppressed viremia in HIV-infected people who started highly active antiretroviral therapy (HAART) when previously naïve to antiretrovirals. A cohort study of patients having started HAART after enrollment in the Italian Cohort of Antiretroviral-Naive Patients (ICoNA) and being followed for at least 6 months. Person-years spent in different categories according to the VL level and the change in VL from the most recent value before the initiation of HAART were calculated. A multivariable Poisson regression model, including potential confounders, was constructed. A total of 3023 patients were studied. The overall rate of CP was 13.4 per 1000 person-years. Evidence for a higher risk of CP was observed for people with a current VL >10,000 copies/mL. For each year longer spent on HAART with a VL >100,000 copies/mL, a 5-fold increased risk was observed (relative risk RR = 5.34, 95% confidence interval CI: 2.83 to 1.08; P = 0.0001). An increased risk of CP in patients with current suppression <1.5 log10 copies/mL (RR = 2.34, 95% CI: 1.16 to 4.74; P = 0.02) and in those with no suppression or a VL higher than their set point (RR = 2.39, 95% CI: 1.17 to 4.89; P = 0.02) was observed compared with those with suppression of >3 log10 copies/mL, although it was not significant. Longer duration on HAART with a VL suppressed below set point seemed to confer protection against CP. Virologic failure to antiretroviral drugs is common. The risk of CP may remain low despite a low but detectable level of HIV viremia.
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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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