My. Iguchi et al., PROSPECTIVE EVALUATION OF A MODEL OF RISK FOR HIV-INFECTION AMONG INJECTING DRUG-USERS, Drug and alcohol dependence, 40(1), 1995, pp. 63-71
Data on 3016 out-of-treatment injecting drug users (IDUs) were analyze
d in order to replicate findings from an earlier study on risk factors
for HIV infection (Iguchi et al., 1992) and evaluate a model for esti
mating probability of infection. Logistic regression analyses yielded
a set of risk factors highly consistent with previous findings. A logi
stic function was used to estimate subjects' probabilities of infectio
n, and these estimates were strongly correlated with actual HIV preval
ence in both the original and current samples. The current study repre
sents a successful replication of earlier findings and supports the va
lidity of the risk model.