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. Author manuscript; available in PMC: 2015 Aug 1.
Published in final edited form as: Addict Behav. 2011 Nov 26;39(8):1286–1291. doi: 10.1016/j.addbeh.2011.11.029

Table 1.

Baseline demographic, drug use, and sexual risk characteristics of participants for each study

Variable Studies
Original Intervention study #1 (n=40)
M (S.D.) or %
Replicated Intervention study #2 (n=46)
M (S.D.) or %
Modified Intervention study #3 (n=171)
M (S.D.) or %
Age (years) 38.5 (5.4) 37.0 (6.4) 39.9 (8.2)
Education (years) 14.8 (2.1) 15.5 (2.1) 14.9 (2.6)
Ethnicity (%)
 Caucasian 85.0 72.0 59.0
 Hispanic 5.0 22.0 21.0
 African American 5.0 0.0 8.0
 Asian American 0.0 4.0 10.0
 Native American 5.0 0.0 0.0
 Multi/Other 0.0 2.0 15.0
HIV Seropositivity (%) 55.0 63.0 63.2
Reported drug use
 Lifetime methamphetamine use (in years) 5.6 (5.0) 6.7 (4.5) 4.0 (4.8)
 Methamphetamine use (days in previous 30) 10.4 (7.8) 6.3 (7.7) 11.2 (8.3)
 Days of using >1 drug (previous 30 days) 4.0 (5.5) 3.0 (4.6) 6.59 (7.1)
 Any injection methamphetamine use (%) 40.0 36.0 48.0
Sexual risk behaviorsa
 Sexual partners (# in previous 30 days) 10.1 (13.3) 9.4 (15.6) 9.8 (11.9)
 Sexual partners (# in previous 6 months) 39.9 (45.5) 48.0 (42.0) 48.1 (68.8)
 URAI with other than primary partner (times in previous 30 days) 3.1 (6.8) 3.2 (5.0) 5.4 (12.5)
 UIAI with other than primary partner (times in previous 30 days) 7.1 (12.8) 2.5 (4.9) 5.7 (15.9)

Note. URAI = unprotected receptive anal intercourse with other than primary partner; UIAI = unprotected insertive anal intercourse with other than primary partner.

a

Self-reported sexual risk behaviors in the previous 30 days at baseline and all follow-up visits.