Table 2.
Mean Baseline and Post-Intervention Scores for Shared Decision Making (SDM) Training and Control Groups and Post-Intervention Between-Group Differences for All Outcome Measures
| Outcome measure | Baseline scores | Post-intervention scores | Post-intervention between-group mean difference, adjusted for baseline (95 % CI) | p value | ||
|---|---|---|---|---|---|---|
| mean (SD) | mean (SD) | |||||
| SDM | Control | SDM | Control | |||
| OPTION Scale* | 30.9 (9.5) | 29.2 (9.5) | 49.1 (19.7) | 29.9 (14.4) | 18.9 (12.4 to 25.4) | < 0.001 |
| ACEPP † | 3.2 (1.1) | 3.1 (0.9) | 4.1 (1.0) | 3.1 (1.2) | 0.9 (0.5 to 1.3) | < 0.001 |
| PPOS Sharing (Q1-9) ‡ | 4.4 (0.6) | 4.2 (0.5) | 4.5 (0.6) | 4.0 (0.5) | 0.2 (0.1 to 0.5) | 0.002 |
| PPOS Caring (Q10-18) ‡ | 3.9 (0.5) | 3.8 (0.5) | 3.9 (0.5) | 3.7 (0.6) | 0.08 (-0.09 to 0.3) | 0.4 |
| Confidence § | 74.1 (16.5) | 73.1 (16.4) | 87.8 (12.1) | 74.5 (17.9) | 13.1 (8.5 to 17.7) | < 0.001 |
* Observing Patient Involvement Scale: score transformed to 0-100, with higher scores indicating a higher skill level
† Assessing Communication About Evidence and Patient Preferences: score range 0 to 5, with higher scores indicating higher skill level
‡ Patient-Practitioner Orientation Scale: score range 1 to 6, with higher scores indicating stronger agreement with the statement
§ Confidence questionnaire: score range 11 to 110, with higher scores indicating a higher level of confidence