Objectives: To assess risk behaviours of HIV infected and HIV negative
Injecting Drug Users (IDUs) in and out of prison in New South Wales i
n a case control study. Methods: 25 (20 M, 5 F) cases and 160 (135 M,
25 F) controls were recruited in 1993. HIV status was determined by te
sting dried blood spots. Results: Cases and controls were similar on b
asic demographic characteristics. Reports of injecting by cases and co
ntrols were more common before entry (84%, 90%) and after prison disch
arge (60%, 80%) than during incarceration (44%, 44%). However, reporte
d syringe sharing was more common during imprisonment (64%, 71%) than
before entry (19%, 24%) and after prison discharge (20%, 15%). Male ca
ses were significantly more likely to use condoms outside prison (44%
vs 7%) bur also to be sexually active in prison (60%, 6%) than male co
ntrols. Conclusions: This study indicates the potential for HIV transm
ission among IDUs in prison and following release. To prevent HIV tran
smission in prisons, prison methadone programs, provision of condoms a
nd evaluation of a pilot needle and syringe exchange scheme need to be
considered.