HIV SEROCONVERSION AND DISINFECTION OF INJECTION EQUIPMENT AMONG INTRAVENOUS DRUG USERS, BALTIMORE, MARYLAND

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Abstract
To examine the putative protective effect of disinfectant use on HIV seroconversion among intravenous drug users, we conducted a nested case-control study comparing 22 black heterosexual HIV seroconverters with 95 persistent seronegatives matched on gender, use of cocaine, date of study entry, and duration of follow-up. For intravenous drug users who reported using disinfectant all the time, the odds of seroconversion was 0.77 (95% CI: 0.25–2.38) compared with those who reported no use of disinfectants; for those who used disinfectants some of the time, the corresponding odds ratio was 0.91 (95% CI: 0.26–3.31). The odds ratio for use of disinfectant all the time was 0.63 (95% CI: 0.10–3.91) for those injecting at galleries and 1.08 (95% CI: 0.35–3.11) for those not injecting at galleries. These data suggest a limited protective effect of disinfectant use in the field which may be more beneficial to those injecting in shooting galleries.

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