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. Author manuscript; available in PMC: 2015 Apr 1.
Published in final edited form as: AIDS Behav. 2014 Apr;18(4):726–739. doi: 10.1007/s10461-014-0723-1

Table III.

Baseline to 6 month effect sizes for HIV risk and service linkage outcomes (continuous outcomes)
BL 3 Mo FU 6 Mo. FU BL-6 Mo p Effect Size1 CI for E.S. Difference
Mean (sd) Mean (sd) Mean (sd) Mean Difference Lower Upper
Days of crack use
Professional Only (n=207): 50.51 36.03 18.62 30.95 15.22 29.38 35.29 <.01 1.05 0.85 1.26
Professional/Peer (n=253): 44.79 37.77 18.26 31.19 13.87 28.11 30.92 <.01 0.92 0.73 1.10
Days of alcohol use
Professional Only (n=207): 47.25 34.57 18.77 28.65 17.44 27.88 29.81 <.01 0.94 0.73 1.14
Professional/Peer (n=253): 44.53 35.39 20.54 30.29 16.96 27.48 27.57 <.01 0.87 0.68 1.05
Number of sex partners
Professional Only (n=207): 18.41 34.72 5.61 22.87 3.60 19.27 14.81 <.01 1.17 0.96 1.38
Professional/Peer (n=253): 21.68 47.83 3.58 10.31 3.53 11.34 18.15 <.01 1.18 1.00 1.38
Unprotected vag. sex times
Professional Only (n=207): 18.49 51.41 9.81 25.09 10.54 25.75 7.95 .03 0.15 −0.03 0.36
Professional/Peer (n=251): 17.35 38.77 12.58 33.52 12.80 30.53 4.55 .01 0.18 0.01 0.36
Days in self-help
Professional Only (n=207): 1.29 5.98 9.35 21.78 9.17 20.28 −7.88 <.01 −0.48 −0.67 −0.28
Professional/Peer (n=253): 2.40 9.77 9.37 21.53 11.17 24.39 −8.77 <.01 −0.39 −0.55 −0.20
Baseline to 6 month effect sizes for HIV risk and service linkage outcomes (dichotomous outcomes)
BL 3 Mo FU 6 Mo. FU BL-6 Mo Difference p Effect Size CI for E.S. Difference
n % n % n % Lower Upper
HIV testing2
Professional Only (n=154): 59 38.3 89 57.8 79 51.3 13.0% .02 −0.33 −0.62 −0.04
Professional/Peer (n=195): 61 31.3 111 56.9 99 50.8 19.5% <.01 −0.54 −0.83 −0.27
Regular source of medical care
Professional Only (n=207): 117 56.5 135 65.2 152 73.4 16.9% <.01 −0.75 −1.16 −0.39
Professional/Peer: (n=253): 152 60.1 186 73.5 195 77.1 17.0% <.01 −0.78 −1.14 −0.45
HIV Care3
Professional Only (n=43): 32 74.4 36 83.7 37 86.0 11.6% .18 −0.69 −1.96 0.22
Professional/Peer (n=43): 34 79.1 37 86.0 37 86.0 6.9% .51 −0.38 −1.39 0.47
1

Effect Size (Cohen’s d) and related 95% confidence intervals are for log-transformed measures

2

HIV testing includes only baseline seronegative participants;

3

HIV care includes only baseline seropositive participants.