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Published on: January 22, 2016
Methamphetamine use, impulsivity, and sexual risk behavior among HIV-positive men who have sex with men
Shirley J Semple1, Jim Zians, Igor Grant
1Department of Psychiatry, University of California, La Jolla, CA 92093-0680, USA.
Abstract:
This study examined impulsivity as a moderator of the relationship between meth use and sexual risk behavior in a sample of HIV-positive meth-using Men who have Sex with Men (MSM). Higher impulsivity was associated with less education, lower income, being unemployed, psychiatric diagnosis, and higher Beck depression scores. Intensity of meth use and sexual risk behavior were significantly correlated. In a multiple regression analysis, more education, greater intensity of meth use and higher levels of impulsivity predicted more unprotected sex. To test for moderating effects of impulsivity, an interaction term was added to the regression. The interactive effects model was statistically significant. A plot of the interaction revealed that the relationship between intensity of meth use and total unprotected sex was strongest among participants who had higher levels of impulsivity. This suggests that targeting impulsivity in interventions may help reduce sexual risk behaviors in high intensity meth-using HIV-positive MSM.
Insights
Impulsivity significantly impacts sexual risk behaviors in HIV-positive men who use methamphetamine (MSM). Interventions targeting impulsivity may reduce unprotected sex among high-intensity meth users.
Area of Science:
- Public Health
- Behavioral Science
- HIV/AIDS Research
Background:
- Methamphetamine use is a significant concern within Men who have Sex with Men (MSM) communities, particularly concerning HIV transmission.
- Understanding factors that influence sexual risk behavior in this population is crucial for effective prevention strategies.
Purpose of the Study:
- To investigate the role of impulsivity as a moderator in the relationship between methamphetamine use intensity and sexual risk behaviors among HIV-positive MSM.
- To identify specific demographic and psychological factors associated with higher impulsivity in this sample.
Main Methods:
- Cross-sectional study analyzing data from HIV-positive meth-using MSM.
- Multiple regression analyses were employed to assess predictors of unprotected sex and test for interaction effects of impulsivity.
Main Results:
- Higher impulsivity correlated with lower education, income, employment, psychiatric diagnoses, and increased depression.
- Methamphetamine use intensity and sexual risk behavior were significantly correlated.
- Education, meth use intensity, and impulsivity independently predicted unprotected sex. Impulsivity significantly moderated the relationship between meth use intensity and unprotected sex, with the association being strongest in highly impulsive individuals.
Conclusions:
- Impulsivity plays a critical role in mediating sexual risk behaviors associated with methamphetamine use in HIV-positive MSM.
- Interventions aimed at reducing impulsivity may be effective in mitigating sexual risk behaviors among high-intensity meth-using HIV-positive MSM.
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