Baseline HCV antibody prevalence and risk factors among drug users in China's National Methadone Maintenance Treatment Program

Journal article


Wang, Changhe, Shi, Cynthia X., Rou, Keming, Zhao, Yan, Cao, Xiaobin, Luo, Wei, Liu, Enwu and Wu, Zunyou. (2016) Baseline HCV antibody prevalence and risk factors among drug users in China's National Methadone Maintenance Treatment Program. PLoS ONE. 11(2), pp. 1 - 14. https://doi.org/10.1371/journal.pone.0147922
AuthorsWang, Changhe, Shi, Cynthia X., Rou, Keming, Zhao, Yan, Cao, Xiaobin, Luo, Wei, Liu, Enwu and Wu, Zunyou
Abstract

Background
Hepatitis C virus (HCV) is the most common viral infection among injecting drug users worldwide. We aimed to assess HCV antibody prevalence and associated risk factors among clients in the Chinese national methadone maintenance treatment (MMT) program.
Methods
Data from 296,209 clients who enrolled in the national MMT program between March 2004 and December 2012 were analyzed to assess HCV antibody prevalence, associated risk factors, and geographical distribution.
Results
Anti-HCV screening was positive for 54.6% of clients upon MMT entry between 2004 and 2012. HCV antibody prevalence at entry declined from 66.8% in 2005 to 45.9% in 2012. The most significant predictors of HCV seropositivity were injecting drug use (adjusted odds ratio [AOR]: 8.34, 95% confidence interval [CI]: 8.17–8.52, p<0.0001) and a history of drug use ≥9 years (AOR: 2.01, 95% CI: 1.96–2.06, p<0.0001). Being female, of Uyghur or Zhuang ethnicity, and unmarried were identified as demographic risk factors (all p-values<0.0001). Of the 28 provincial-level divisions included in the study, we found that 5 divisions had HCV antibody prevalence above 70% and 20 divisions above 50%. The HCV screening rate within 6 months after MMT entry greatly increased from 30.4% in 2004 to 93.1% in 2012.
Conclusions
The current HCV antibody prevalence remains alarmingly high among MMT clients throughout most provincial-level divisions in China, particularly among injecting drug users and females. A comprehensive prevention strategy is needed to control the HCV epidemic among MMT clients in China.

Year2016
JournalPLoS ONE
Journal citation11 (2), pp. 1 - 14
PublisherPublic Library of Science (PLoS)
ISSN1932-6203
Digital Object Identifier (DOI)https://doi.org/10.1371/journal.pone.0147922
Scopus EID2-s2.0-84960532405
Open accessOpen access
Page range1 - 14
Research GroupMary MacKillop Institute for Health Research
Publisher's version
License
Place of publicationUnited States of America
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