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Incidence and predictors of regimen-modification from first-line antiretroviral therapy in Thailand: a cohort study

Overview of attention for article published in BMC Infectious Diseases, October 2014
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Title
Incidence and predictors of regimen-modification from first-line antiretroviral therapy in Thailand: a cohort study
Published in
BMC Infectious Diseases, October 2014
DOI 10.1186/s12879-014-0565-5
Pubmed ID
Authors

Naho Tsuchiya, Panita Pathipvanich, Nuanjun Wichukchinda, Archawin Rojanawiwat, Wattana Auwanit, Koya Ariyoshi, Pathom Sawanpanyalert

Abstract

BackgroundAntiretroviral therapy markedly reduced mortality in HIV-infected individuals. However, in the previous studies, up to 50% of patients are compelled to modify their regimen in middle and low-income countries where salvage drug is still limited. This cohort study aimed to investigate the incidence and predictors of regimen modification from the first-line antiretroviral regimen in northern Thailand.MethodsAll HIV-infected patients starting antiretroviral therapy (ART) with generic drug (GPOvir®; stavudine, lamivudine and nevirapine) at a governmental hospital in northern Thailand from 2002 to 2007 were recruited. Baseline characteristics and detailed information of regimen modification until the end of 2010 were ascertained from cohort database and medical charts. As a potential genetic predictor of regimen modification, HLA B allele was determined by bead-based array hybridization (WAKFlow® HLA typing kit). We investigated predictors of the regimen modification using Cox¿s proportional hazard models.ResultsOf 979 patients, 914 were eligible for the analysis. The observed events of regimen modification was 377, corresponding to an incidence 13.8/100 person-year-observation (95%CI:12.5-15.3) over 2,728 person years (PY) follow up. The main reasons for regimen modification were adverse effects (73.5%), especially lipodystrophy (63.2%) followed by rash (17.7%). Sixty three patients (17.1%) changed the regimen due to treatment failure. 2% and 19% of patients had HLA-B*35:05 and B*4001, respectively. HLA-B*35:05 was independently associated with rash-related regimen modification (aHR 7.73, 95%CI:3.16-18.9) while female gender was associated with lipodystrophy (aHR 2.11, 95%CI:1.51-2.95). Female gender (aHR 0.54, 95%CI: 0.30-0.96), elder age (aHR 0.56, 95%CI: 0.32-0.99) and having HLA-B*40:01 (aHR 0.29, 95%CI: 0.10-0.82) were protective for treatment failure related modification.ConclusionHLA-B*35:05 and female gender were strong predictors of regimen modification due to rash and lipodystrophy, respectively. Female gender, elder age, and having HLA-B*40:01 had protective effects on treatment failure-related regimen modification. This study provides further information of regimen modification for future tailored ART in Asia.

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Mendeley readers

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Geographical breakdown

Country Count As %
Unknown 50 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 12 24%
Researcher 9 18%
Student > Postgraduate 6 12%
Student > Doctoral Student 4 8%
Student > Bachelor 3 6%
Other 7 14%
Unknown 9 18%
Readers by discipline Count As %
Medicine and Dentistry 24 48%
Social Sciences 4 8%
Pharmacology, Toxicology and Pharmaceutical Science 3 6%
Nursing and Health Professions 2 4%
Immunology and Microbiology 2 4%
Other 6 12%
Unknown 9 18%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 18 November 2014.
All research outputs
#16,099,609
of 23,881,329 outputs
Outputs from BMC Infectious Diseases
#4,648
of 7,931 outputs
Outputs of similar age
#154,836
of 262,984 outputs
Outputs of similar age from BMC Infectious Diseases
#115
of 198 outputs
Altmetric has tracked 23,881,329 research outputs across all sources so far. This one is in the 22nd percentile – i.e., 22% of other outputs scored the same or lower than it.
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We're also able to compare this research output to 198 others from the same source and published within six weeks on either side of this one. This one is in the 36th percentile – i.e., 36% of its contemporaries scored the same or lower than it.