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. Author manuscript; available in PMC: 2011 Jul 1.
Published in final edited form as: J Addict Dis. 2010 Jul;29(3):370–382. doi: 10.1080/10550887.2010.489451

Table 3.

Results of the regression model for the number of sexual events without condoms at baseline, 3-, and 6-month follow-ups as a function of treatment modality and intervention for intervention completers only.

Completers only
Parameter Estimate Standard Error t - value Prob. < | t |
Fixed Effects
Intercept 3.04 0.27 11.35 <.001
Age (< 41 vs. 41+) −0.55 0.16 −3.53 <.001
Education (< 12 vs. 12 + years) 0.21 0.19 1.10 .274
Employed (No vs. Yes) −0.05 0.25 −0.58 .560
Partner Risk (Low vs. High) −0.29 0.16 −1.75 .081
Time 0.04 0.02 1.92 .056
Intervention −0.03 0.25 −0.13 .898
Treatment Modality −0.23 0.22 −1.06 .288
Intervention × Time −0.19 0.03 −5.65 <.001
Intervention × Treatment Modality −0.17 0.31 −0.54 .593
Time × Treatment Modality −0.04 0.03 −1.40 .162
Intervention × Time × Treatment Modality 0.12 0.05 2.55 .012
Random Effects
Logistic (ν^) 2.03 0.66 3.07 .002
Poisson (υ^) 1.28 0.14 8.88 < .001
Covariance (ν^,υ^) −0.96 0.20 −4.77 <.001
Scale Parameter
τ −0.58 0.067 −8.77 < .001