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BMJ. 1998 Aug 15;317(7156):433-7.

Infection with HIV and hepatitis C virus among injecting drug users in a prevention setting: retrospective cohort study.

Author information

  • 1Kirketon Road Centre, PO Box 22, Kings Cross, New South Wales 1340, Australia. ivanbeek@ozemail.com.au

Abstract

OBJECTIVES:

To estimate the incidence of HIV and hepatitis C virus and risk factors for seroconversion among a cohort of injecting drug users.

DESIGN:

Retrospective cohort study.

SETTING:

Primary healthcare facility in central Sydney.

SUBJECTS:

Injecting drug users tested for HIV-1 antibody (n=1179) and antibodies to hepatitis C virus (n=1078) from February 1992 to October 1995.

MAIN OUTCOME MEASURES:

Incidence of HIV-1 and hepatitis C virus among seronegative subjects who injected drugs and underwent repeat testing. Demographic and behavioural risk factors for hepatitis seroconversion.

RESULTS:

Incidence of HIV-1 among 426 initially seronegative injecting drug users was 0.17/100 person years (two seroconversions) compared with an incidence of hepatitis C virus of 20.9/100 person years (31 seroconversions) among 152 injecting drug users initially negative for hepatitis C virus. Incidence of hepatitis C virus among injecting drug users aged less than 20 years was 75.6/100 person years. Independent risk factors for hepatitis C virus seroconversion were age less than 20 years and a history of imprisonment.

CONCLUSIONS:

In a setting where prevention measures have contributed to the maintenance of low prevalence and incidence of HIV-1, transmission of hepatitis C virus continues at extremely high levels, particularly among young injecting drug users.

Comment in

PMID:
9703523
[PubMed - indexed for MEDLINE]
PMCID:
PMC28635
Free PMC Article
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