267323 Knowledge of HIV serostatus is associated with lower HIV risk among a sample of injection drug users in Houston, Texas

Monday, October 29, 2012 : 3:30 PM - 3:45 PM

Syed Noor, PhD, MPH, MA, MSS , School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX
Michael W. Ross, PhD , WHO Center for Health Promotion Research and Development, The University of Texas - Houston School of Public Health, Houston, TX
Dejian Lai, PhD , School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX
Jan Risser, PhD , Department of Epidemiology and Disease Control, University of Texas School of Public Health, Houston, TX
Background: It is hypothesized that knowledge of one's own HIV serostatus is associated with reduced HIV risk behaviors among injection drug users (IDUs). This analysis aims to assess the association between knowledge of own HIV serostatus and HIV risk.

Methods: Our study includes 523 eligible IDUs, recruited into the 2009 National HIV Behavioral Surveillance project. We classified the sample of IDUs into HIV risk classes using latent class analysis. Class status was based on 9 observed drug and sexual behaviors. We compared the proportions of IDUs unaware and aware of their HIV serostatus between different HIV risk classes using Cochran-Armitage test. Subsequently, we compared the proportions of known negatives and known positives between HIV risk classes.

Results: We identified 3 HIV risk classes: high (42%), moderate (25%) and low (33%). The proportions of IDUs unaware of their HIV sero-status were 0.14 in the Low-risk class, 0.16 in the Moderate-risk class, and 0.29 in the High-risk class. This trend was statistically significant (p<0.001). However, among IDUs who were aware of their HIV serostatus, the proportions of HIV-positives in risk classes were similar (0.03, 0.06 and 0.05 respectively; p=0.45).

Conclusions: Our results show participants who were unaware of their HIV serostatus were more likely to be in high risk class compared to participants who were aware of their HIV serostatus. Routine screening and early detection can help to reduce subsequent inter- and intra-group HIV infection among injection drug users.

Learning Areas:
Administer health education strategies, interventions and programs
Public health or related laws, regulations, standards, or guidelines
Social and behavioral sciences

Learning Objectives:
Learners will be able to describe Latent Class Analysis approach to identify HIV risk classes based on observed drug and sexual risk behaviors. describe drug and sexual risk behaviors associated with HIV risk among injection drug users. describe the importance of tailored intervention along with routine screening to reduce HIV infection among injection drug users.

Keywords: HIV Interventions, Screening

Presenting author's disclosure statement:

Qualified on the content I am responsible for because: I conceptualized and conducted this analysis.
Any relevant financial relationships? No

I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.