Table 3.
Treatment response - completers analyses
|
Response variables |
Parameter |
Unadjusted |
Adjusted |
||||||
|---|---|---|---|---|---|---|---|---|---|
| |
|
Estimate |
Sig. |
95% CI |
Estimate |
Sig. |
95% CI |
||
| Lower bound | Upper bound | Lower bound | Upper bound | ||||||
| AUDIT |
6 months |
−2.20 |
0.141 |
−5.14 |
0.74 |
−2.22 |
0.137 |
−5.15 |
0.72 |
| 12 months |
−3.53 |
0.017 |
−6.41 |
−0.65 |
−3.53 |
0.017 |
−6.41 |
−0.65 |
|
| IG*6 m |
−3.18 |
0.057 |
−6.46 |
0.099 |
−2.72 |
0.106 |
−6.02 |
0.59 |
|
| IG*12 m |
−2.76 |
0.097 |
−6.03 |
0.51 |
−2.35 |
0.160 |
−5.64 |
0.94 |
|
| DUDIT |
6 months |
−0.97 |
0.615 |
−4.80 |
2.86 |
−0.98 |
0.612 |
−4.81 |
2.84 |
| 12 months |
−4.18 |
0.029 |
−7.92 |
−0.43 |
−4.18 |
0.029 |
−7.92 |
−0.43 |
|
| IG*6 m |
1.51 |
0.784 |
−11.80 |
14.82 |
−1.45 |
0.806 |
−15.87 |
12.96 |
|
| IG*12 m |
2.49 |
0.652 |
−10.82 |
15.79 |
−0.48 |
0.935 |
−14.89 |
13.93 |
|
| SCL-90-anxiety |
6 months |
−0.13 |
0.418 |
−0.45 |
0.19 |
−0.13 |
0.429 |
−0.45 |
0.19 |
| 12 months |
−0.17 |
0.289 |
−0.49 |
0.15 |
−0.17 |
0.285 |
−0.49 |
0.15 |
|
| IG*6 m |
0.34 |
0.230 |
−0.22 |
0.89 |
0.38 |
0.204 |
−0.21 |
0.97 |
|
| IG*12 m |
0.22 |
0.429 |
−0.33 |
0.78 |
0.27 |
0.372 |
−0.33 |
0.86 |
|
| SCL-90-depres-sion |
6 months |
−0.20 |
0.372 |
−0.63 |
0.24 |
−0.19 |
0.374 |
−0.63 |
0.24 |
| 12 months |
−0.36 |
0.097 |
−0.80 |
0.07 |
−0.37 |
0.094 |
−0.80 |
0.06 |
|
| IG*6 m |
0.27 |
0.501 |
−0.66 |
1.19 |
0.34 |
0.393 |
−0.57 |
1.25 |
|
| IG*12 m |
0.18 |
0.646 |
−0.75 |
1.11 |
0.25 |
0.525 |
−0.66 |
1.16 |
|
| SCL-90-GSI |
6 months |
−0.16 |
0.257 |
−0.45 |
0.12 |
−0.16 |
0.260 |
−0.45 |
0.12 |
| 12 months |
−0.13 |
0.353 |
−0.42 |
0.15 |
−0.14 |
0.345 |
−0.42 |
0.15 |
|
| IG*6 m |
0.39 |
0.200 |
−0.30 |
1.09 |
0.43 |
0.157 |
−0.23 |
1.08 |
|
| IG*12 m |
0.15 |
0.595 |
−0.54 |
0.85 |
0.18 |
0.511 |
−0.48 |
0.84 |
|
| ASI-alcohol |
6 months |
−6.28 |
0.001 |
−9.96 |
−2.61 |
−6.40 |
0.001 |
−10.09 |
−2.72 |
| 12 months |
−4.29 |
0.020 |
−7.90 |
−0.69 |
−4.29 |
0.020 |
−7.91 |
−0.68 |
|
| IG*6 m |
−0.72 |
0.723 |
−4.70 |
3.27 |
1.86 |
0.432 |
−3.56 |
7.29 |
|
| IG*12 m |
−3.40 |
0.093 |
−7.38 |
0.58 |
−1.05 |
0.648 |
−6.44 |
4.34 |
|
| ASI-Illegal substances |
6 months |
−5.41 |
0.182 |
−13.41 |
2.58 |
−5.41 |
0.182 |
−13.40 |
2.58 |
| 12 months |
−6.24 |
0.125 |
−14.23 |
1.76 |
−6.24 |
0.125 |
−14.23 |
1.76 |
|
| IG*6 m |
10.32 |
0.315 |
−13.15 |
33.79 |
10.94 |
0.308 |
−13.90 |
35.78 |
|
| IG*12 m |
8.90 |
0.381 |
−14.56 |
32.37 |
9.55 |
0.368 |
−15.28 |
34.38 |
|
| SATS-R | 6 months |
1.65 |
<0.001 |
0.81 |
2.49 |
1.65 |
<0.001 |
0.81 |
2.49 |
| 12 months |
2.35 |
<0.001 |
1.51 |
3.19 |
2.35 |
<0.001 |
1.51 |
3.19 |
|
| IG*6 m |
1.76 |
0.070 |
−0.19 |
3.71 |
1.63 |
0.050 |
0.001 |
3.25 |
|
| IG*12 m | 2.18 | 0.034 | 0.22 | 4.14 | 2.07 | 0.020 | 0.44 | 3.70 | |
Examining differences between the Intervention Group and the Control Group in regard to treatment response – Completers analyses.
Completers = Having received at least 5 sessions and met for at least one follow-up session.
6 months = The change of the Control group between baseline and 6 months. 12 months = The change of the Control group between baseline and 12 months. IG*6 m = The additional change of the Intervention group between baseline and 6 months compared to the Control Group. IG*12 m = The additional change of the Intervention group between baseline and 12 months compared to the Control Group. AUDIT = The Alcohol Use Disorder Identification Test, DUDIT = The Drug Use Disorder Identification Test, SCL-90-Anxiety = The Symptom Check List 90 anxiety sum score, SCL-90-Depression = The Symptom Check List 90 depression sum score, SCL-90-GSI = The Symptom Check List 90 Global Severity Index sum score, ASI-Alcohol = The European Addiction Severity Index, number of days using alcohol on a regular basis during the last 30 days, ASI-Illegal substances = The European Addiction Severity Index, number of days using any illegal substances during the last 30 days, SATS-R = The Substance Abuse Treatment Scale, revised.
Statistical significant values are written in bold types, a 5% alfa-level is used.
A linear multilevel model is used. The different response variables are modelled as a function of group and time. The clustering in the data is accounted for by a random intercept at patient level and at centre level. The primary target of analysis was the interaction between group and time. The analyses where adjusted for by the following covariates: Age, Gender, Being in a relationship, Having his/her own apartment, Having paid work and Having compulsory school only or senior high school. During the adjusted analyses a non-restricted Log likelihood was used. In the final models, the restricted Log Likelihood was used.