Table 5.
Treatment and Time Contrast on Primary Outcomes
| Outcome | Contrast* | Estimate (95%CI) | SE | df | P |
|---|---|---|---|---|---|
| PRDD** | PS-SM | −0.205 (−0.784, 0.374) | 0.242 | 1729 | 0.783 |
| CI-SM | −0.145 (−0.75, 0.46) | 0.253 | 1729 | 0.918 | |
| CI-PS | 0.059 (−0.546, 0.665) | 0.253 | 1729 | 0.994 | |
| 12M-3M | −0.484 (−0.867, −0.101) | 0.145 | 1729 | 0.005 | |
| 9M-3M | −0.557 (−0.928 −0.185) | 0.141 | 1729 | < 0.001 | |
| CI: 12M-3M | −1.149 (−1.868, −0.43) | 0.273 | 1729 | < 0.001 | |
| CI: 9M-3M | −0.884 (−1.578, −0.189) | 0.264 | 1729 | 0.005 | |
| QoL-PH | PS-SM | 0.339 (−0.592, 1.269) | 0.389 | 1728 | 0.767 |
| CI-SM | −0.326 (−1.297, 0.644) | 0.406 | 1728 | 0.806 | |
| CI-PS | −0.665 (−1.636, 0.306) | 0.406 | 1728 | 0.275 | |
| QoL-MH | PS-SM | 0.519 (−0.701, 1.739) | 0.510 | 1728 | 0.670 |
| CI-SM | 1.540 (0.268, 2.811) | 0.532 | 1728 | 0.011 | |
| CI-PS | 1.020 (−0.252, 2.293) | 0.532 | 1728 | 0.157 | |
| 12M-3M | 0.894 (0.078, 1.710) | 0.310 | 1728 | 0.023 | |
| 6M-3M | 0.814 (0.165, 1.463) | 0.246 | 1728 | 0.006 | |
| 6M: CI-SM | 1.587 (0.002, 3.172) | 0.663 | 1728 | 0.050 | |
| 9M: CI-SM | 1.972 (0.277, 3.667) | 0.709 | 1728 | 0.016 | |
| PS: 12M-3M | 1.569 (0.203, 2.934) | 0.518 | 1728 | 0.015 | |
| PS: 6M-3M | 1.309 (0.214, 2.405) | 0.416 | 1728 | 0.010 |
Notes: Abbreviations: M: Month, PRDD: Percentages of risky drinking days, QoL-PH: Quality of life-Physical health, QoL-MH: Quality of life-Mental health, SM: Self-monitoring, PS: Peer-supported, CI: Clinically integrated.
*
Treatment contrasts controlled for alcohol drinking severity at screening, biological sex, and outcomes at baseline. Contrasts for the main group comparisons were included. For the time and the group by time effects, only the significant level of pairwise comparisons lower than 0.1 were listed.
**
PRDD is a square-root transformed variable.