Table 5 Shared decision making questionnaire (SDM-Q-9): raw and adjusted means in intervention and control group at all times of measurement, standard deviation, 95% confidence intervals, p-values; model describing the difference between the groups. Per-protocol analysis
Intervention group | Control group | Between group differences | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Change from baseline | Change from baseline | Intervention group - Control group | ||||||||||||||||
SDM | N | Mean | SD | Adjusted Mean | 95% CI | p-Value | N | Mean | SD | Adjusted Mean | 95% CI | p-Value | Adjusted Mean | 95% CI | p Value | |||
Baseline | 349 | 23.36 | 13.3 | 370 | 22.42 | 14.4 | ||||||||||||
6 months follow up | 328 | 19.83 | 13.4 | -2.98 | -4.44 | -1.51 | 0.0001 | 342 | 19.21 | 14.5 | -3.11 | -4.50 | -1.71 | <.0001 | 0.13 | -1.71 | 1.97 | 0.8893 |
12 months follow up | 296 | 20.32 | 14.2 | -2.57 | -4.08 | -1.07 | 0.0010 | 312 | 19.83 | 14.7 | -2.70 | -4.14 | -1.27 | 0.0003 | ||||
18 months follow up | 289 | 20.90 | 13.8 | -2.72 | -4.24 | -1.20 | 0.0006 | 286 | 19.64 | 14.6 | -2.85 | -4.31 | -1.38 | 0.0002 | ||||
24 months follow up | 282 | 21.05 | 14.4 | -2.57 | -4.12 | -1.02 | 0.0013 | 284 | 19.77 | 15.2 | -2.70 | -4.19 | -1.21 | 0.0004 | ||||