Behaviors of recently HIV-infected men who have sex with men in the year postdiagnosis: effects of drug use and partner types.
OBJECTIVE
Assess behavior change of recently HIV-infected men who have sex with men (MSM).


METHODS
From 2002 to 2006, 193 recently HIV-infected MSM in the Southern California Acute Infection and Early Disease Research Program were interviewed every 3 months. Changes in HIV status of partners, recent unprotected anal intercourse (UAI), drug use, use of antiretroviral therapy (ART), detectable viral load, and partnership dynamics over 1 year were used to predict recent UAI in a random effect logistic regression.


RESULTS
Over a year significantly fewer partners in the past 3 months were reported (mean 8.81 to 5.84; P < 0.0001). Percentage of recent UAI with HIV-status unknown last partners decreased from enrollment to 9 months (49%-27%) and rebounded at 12 months to 71%. In multivariable models controlling for ART use, recent UAI was significantly associated with: baseline methamphetamine use [adjusted odds ratio (AOR): 7.65, 95% confidence interval (CI): 1.87 to 31.30], methamphetamine use at follow-up (AOR: 14.4, 95% CI: 2.02 to 103.0), HIV-uninfected partner at follow-up (AOR: 0.14, 95% CI: 0.06 to 0.33), and partners with unknown HIV status at follow-up (AOR: 0.33, 95% CI: 0.11 to 0.94). HIV viral load did not influence rate of UAI.


CONCLUSIONS
Transmission behaviors of these recently HIV-infected MSM decreased and serosorting increased after diagnosis; recent UAI with serostatus unknown or negative partners rebounded after 9 months, identifying critical timepoints for interventions targeting recently HIV-infected individuals. There was no evidence in this cohort that the viral load of these recently infected men guided their decisions about protected or unprotected anal intercourse.
Department of Epidemiology, School of Public Health, University of California, Los Angeles, CA 90095-1772, USA. pgorbach@ucla.edu
Pamina M
PM
Gorbach
Robert E
RE
Weiss
Robin
R
Jeffries
Marjan
M
Javanbakht
Lydia N
LN
Drumright
Eric S
ES
Daar
Susan J
SJ
Little
D000328:Adult; D019380:Anti-HIV Agents / Q000627:therapeutic use; D002140:California; D005500:Follow-Up Studies; D015658:HIV Infections / Q000523:psychology*; D018451:Homosexuality, Male; D006801:Humans; D008297:Male; D008875:Middle Aged; D012725:Sexual Behavior / Q000523:psychology*; D019966:Substance-Related Disorders / Q000150:complications*; D019562:Viral Load; D055815:Young Adult
D019380:Anti-HIV Agents