Patterns of high-risk behaviors associated with HIV among male prisoners: A latent class analysis

Acquired Immunodeficiency Syndrome (AIDS) is one of the most important health challenges worldwide. Moreover, the prevalence of the Human Immunodeficiency Virus (HIV) infection differs among Iranian prisoners and the general population. The present study aimed to identify the patterns of HIV-related high-risk behaviors in male prisoners.

In this cross-sectional study, 2832 inmates were examined for HIV-related high-risk behaviors. The required data were collected using a questionnaire on high-risk behaviors, including a history of heterosexual and homosexual intercourse, and a history of drug use disorders. A Latent Class Analysis (LCA) was performed to analyze the obtained data in WinLTA software.

Five latent classes were defined for the male prisoners, as follows: low-risk (20%), moderate-risk (23%), Injection Drug Use (IDU) (8%), heterosexual intercourse/methamphetamine use (38%), and high-risk (11%). The LCA results revealed that high-risk sexual behaviors, IDU, and sharing injection equipment in prisons significantly influence the classification. The obtained data suggested that a history of imprisonment was not frequent in class 2 (OR=1.0033, %95CI:0.9936–1.01) and class 4 members (OR=1.0053, %95CI:0.9929–1.0179). However, it was more prevalent in class 3 (OR=1.0164, %95CI:1.0068–1.0262), and 5 (OR=1.0211, %95CI:1.0129–1.0293). Heterosexual contact had the highest prevalence (75%) in this regard. The results showed that the lowest prevalence of high-risk behaviors was associated with morphine use (0.3%). Among illicit drugs, methamphetamine was the most prevalent drug (42%) in the studied subjects.

The present study indicated a high prevalence of high-risk sexual behaviors and methamphetamine use in the investigated participants. We observed the co-occurrence of HIV-related high-risk behaviors in male prisoners. Thus, providing safe sex education for prisoners is highly recommended. It is also necessary to pursue care programs about IDU as a key risk factor for HIV transmission in prisons.