Table 2.
Substance Use and Service Utilization effect size (Cohen's d) by treatment condition and site.
| Outcome measure | Site 1 (n = 44) |
Site 2 (n = 38) |
Site 3 (n = 38) |
Total (n = 120) |
||||
|---|---|---|---|---|---|---|---|---|
| CAU | METS | CAU | METS | CAU | METS | CAU | METS | |
| Days of primary substance use (active phasea) | ||||||||
| Mean | 9.1 | 13.92 | 6.33 | 10.14 | 9.77 | 7.5 | 8.32 | 11.04 |
| SD | 7.97 | 9.63 | 6.66 | 8.50 | 8.08 | 10.49 | 7.60 | 9.84 |
| Effect size (95% CI) | −0.55 (−1.16, 0.08) | −0.50 (−1.21, 0.18) | 0.24 (−0.92, 0.42) | −0.31 (−0.68, 0.05) | ||||
| Days of primary substance use (follow-upb) | ||||||||
| Mean | 30.5 | 25.96 | 17.21 | 23.71 | 21.59 | 19.63 | 22.70 | 23.5 |
| SD | 26.74 | 22.20 | 16.12 | 19.77 | 20.44 | 22.28 | 21.59 | 21.39 |
| Effect size (95% CI) | 0.19 (−0.43, 0.8) | −0.36 (−1.06, 0.31) | 0.09 (−0.76, 0.57) | −0.04 (−0.37, 0.36) | ||||
| Days of service utilization (from active phaseathrough follow-upb) | ||||||||
| Mean | 31.55 | 12.21 | 10.04 | 10.5 | 8.27 | 16.56 | 15.97 | 13.06 |
| SD | 63.13 | 10.97 | 7.46 | 17.48 | 4.70 | 20.28 | 36.05 | 15.79 |
| Effect size (95% CI) | −0.43 (−1.07, 0.17) | 0.03 (−0.72, 0.64) | 0.56 (−0.07, 1.29) | −0.11 (−0.26, 0.46) | ||||
| Days of counseling services utilization (from active phaseathrough follow-upb) | ||||||||
| Mean | 3.3 | 3.13 | 3.08 | 1.93 | 2.23 | 3 | 2.86 | 2.78 |
| SD | 6.67 | 6.32 | 4.06 | 2.40 | 1.90 | 3.35 | 4.50 | 4.71 |
| Effect size (95% CI) | −0.03 (−0.64, 0.58) | −0.35 (−1.01, 0.36) | 0.28 (−0.37, 0.97) | −0.02 (−0.34, 0.38) | ||||
Note.
a
Active phase = Weeks 1-3.
b
Follow-up = Weeks 5-16.