Effectiveness of first-line antiretroviral therapy in the IPEC cohort, Rio de Janeiro, Brazil.
Effectiveness of first-line antiretroviral therapy in the IPEC cohort, Rio de Janeiro, Brazil.
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DOI:
10.1186/1742-6405-11-29
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发表时间:
2014
影响因子:
2.2
通讯作者:
Grinsztejn B
中科院分区:
文献类型:
--
作者:
Cardoso SW;Luz PM;Velasque L;Torres T;Coelho L;Freedberg KA;Veloso VG;Walensky RP;Grinsztejn B
While Brazil has had a long-standing policy of free access to antiretroviral therapy (ART) for all in need, the epidemiological impact of ART on human immunodeficiency virus (HIV) RNA suppression in this middle-income country has not been well evaluated. We estimate first-line ART effectiveness in a large Brazilian cohort and examine the socio-demographic, behavioral, clinical and structural factors associated with virologic suppression. Virologic suppression on first-line ART at 6, 12, and 24 months from start of ART was defined as having a viral load measurement ≤400 copies/mL without drug class modification and/or discontinuation. Drug class modification and/or discontinuation were defined based on the class of a particular drug. Quasi-Poisson regression was used to quantify the association of factors with virologic suppression. From January 2000 through June 2010, 1311 patients started first-line ART; 987 (75%) patients used NNRTI-based regimens. Virologic suppression was achieved by 77%, 76% and 68% of patients at 6, 12 and 24 months, respectively. Factors associated with virologic suppression at 12 months were: >8 years of formal education (compared to <4 years, risk ratio (RR) 1.13, 95% confidence interval (95% CI) 1.03-1.24), starting ART in 2005-2010 (compared to 2000-2004, RR 1.25 95% CI 1.15-1.35), and clinical trial participation (compared to no participation, RR 1.08 95% CI 1.01-1.16). Also at 12 months, women showed less virologic suppression compared to heterosexual men (RR 0.90 95% CI 0.82-0.99). For the 24-month endpoint, in addition to higher education, starting ART in the later period, and clinical trial participation, older age and an NNRTI-based regimen were also independently associated with virologic suppression. Our results show that in Brazil, a middle-income country with free access to treatment, over three-quarters of patients receiving routine care reached virologic suppression on first-line ART by the end of the first year. Higher education, more recent ART initiation and clinical trial participation were associated with improved outcomes both for the 12-month and the 24-month endpoints, suggesting that further studies are needed to understand what aspects relating to these factors lead to higher virologic suppression.
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影响因子:
3.8
作者:
Campos, DP;Ribeiro, SR;Gadelha, AJ
通讯作者:
Gadelha, AJ
影响因子:
11.8
作者:
Ivers, LC;Kendrick, D;Doucette, K
通讯作者:
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作者:
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通讯作者:
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DOI:
10.1097/qai.0b013e31802c7e20
发表时间:
2007-03-01
影响因子:
3.6
作者:
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通讯作者:
Benson, Constance A.
影响因子:
2.2
作者:
Marconi, Vincent C.;Grandits, Greg A.;Agan, Brian K.
通讯作者:
Agan, Brian K.