TABLE 4.
HIV Prevalence Among Injection Drug Users (IDUs) Before (Pre-Exchange) and After (Post-Exchange) Implementation of Large-Scale Syringe Exchange Programs, by Gender and MSM Behavior: New York City, 1990–2008
| HIV Prevalence Among Pre-Exchange IDUs, No./Total (%) | Pre-Exchange IDUs,a OR (95% CI) | Pre-Exchange IDUs,b AOR (95% CI) | HIV Prevalence Among Post-Exchange IDUs, No./Total (%) | Post-Exchange IDUs, OR (95% CI) | Post-Exchange IDUs,b AOR (95% | |
| MSM IDUs | 44/74 (59) | 1.55 (0.96, 2.52) | 1.73 (1.06, 2.83) | 10/55 (18) | 5.79 (2.65, 12.61) | 6.90 (3.11, 15.32) |
| Female IDUs | 110/221 (50) | 1.05 (0.78, 1.41) | 1.18 (0.87, 1.60) | 25/270 (9) | 2.66 (1.53, 4.62) | 2.71 (1.54, 4.76) |
| Non-MSM male IDUsc (Ref) | 441/908 (49) | 1.00 | 1.00 | 29/784 (4) | 1.00 | 1.00 |
Note. MSM = men who have sex with men; OR = odds ratio; AOR = adjusted odds ratio; CI = confidence interval.
a
ORs are for HIV prevalence for each gender or MSM behavior group relative to non-MSM male IDUs.
b
AORs are adjusted for age and race/ethnicity.
c
Whether or not male participants had sex with other men.