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M94A0682.TXT
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1994-10-21
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Document 0682
DOCN M94A0682
TI Incidence of HBV and HCV in prison entrants in Victoria, 1991-92:
evidence of a core risk group for HIV transmission.
DT 9412
AU Crofts N; Stewart T; Hearne P; Breschkin A; Locarnini S; Macfarlane
Burnet Centre, Fairfield, Vic.
SO Annu Conf Australas Soc HIV Med. 1993 Oct 28-30;5:41 (abstract no. TE7).
Unique Identifier : AIDSLINE ASHM5/94348973
AB AIM: To measure incidence of blood-borne viruses among prison entrants,
to assess risk in these populations for HIV transmission. METHODS: All
entrants to Pentridge Prison between Oct91 and Oct92 were tested with
consent for HIV/HBV/HCV; incidence rates were calculated for those
tested more than once in the period. Limited demographic and risk
behaviour data were collected. RESULTS: 350 people were tested more than
once in the study period. The seroconversion rate for HBV was 12.5%
p.a., and for HCV was 18.3% p.a. Seroconverters (sc's) for both viruses
were all males aged less than 30 years (mean 22.5 years, sd 3.5) who
gave a history of injecting drug use IDU); among this group,
seroconversion rates were 26% and 41% p.a. respectively. 90% of the HBV
sc's were anti-HCV positive, and 80% of the HCV sc's were anti-HBV core
negative at first bleed. None of the seroconverters was HIV positive,
and none of the 0.5% of entrants who were anti-HIV positive was retested
in the study period; they were all male, but older (mean 31.2 years, sd
4.3) and less likely to have a history of IDU. CONCLUSIONS: Blood-borne
viruses are spreading freely in this population, especially among male
IDUs aged less than 30, who make up 30% of all prison entrants in
Victoria. Given previous findings that HBV is a good surrogate marker
for HIV risk in IDU populations, it is possible that we have identified
a core group at high risk for HIV if it were to enter this population.
DE Adult Cross-Sectional Studies Hepatitis B/*EPIDEMIOLOGY/TRANSMISSION
Hepatitis C/*EPIDEMIOLOGY/TRANSMISSION Human HIV
Infections/EPIDEMIOLOGY/*TRANSMISSION Incidence Male
Prisoners/*STATISTICS & NUMER DATA Risk Factors Substance Abuse,
Intravenous/COMPLICATIONS/EPIDEMIOLOGY Victoria/EPIDEMIOLOGY MEETING
ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).