Table 2 Differences in process outcomes by decision aid received
From: Head to head randomized trial of two decision aids for prostate cancer
| Â | N | Complex DA | Simple DA | Abs. diff/(CI) | t/(p value) |
|---|---|---|---|---|---|
Knowledge (proportion correct,12 item scale) | 279 | 0.48 | 0.53 | 0.05 (− 0.01, 0.11) | 1.57 (0.116) |
Interest in shared decision making | |||||
 Biopsy interview | 1012 | 3.30 | 3.34 | 0.04 (− 0.05, 0.14) | 0.88 (0.380) |
 Pre-clinic interview | 281 | 3.33 | 3.50 | 0.16* (0.02, 0.31) | 2.20 (0.027) |
 Post-clinic interview | 241 | 3.50 | 3.60 | 0.10 (− 0.06, 0.26) | 1.19 (0.235) |
Anxiety | |||||
 Biopsy interview | 1005 | 1.02 | 1.07 | 0.05 (− 0.04, 0.14) | 1.06 (0.290) |
 Pre-clinic interview | 280 | 1.08 | 1.12 | 0.03 (− 0.13, 0.20) | 0.39 (0.694) |
 Post-clinic interview | 240 | 2.08 | 2.15 | 0.07 (− 0.12, 0.25) | 0.72 (0.474) |
How helpful was the DA | |||||
 Influencing treatment | 272 | 3.02 | 3.32 | 0.31 (− 0.02, 0.63) | 1.86 (0.063) |
 Understanding prostate cancer | 272 | 3.76 | 4.13 | 0.38** (0.11, 0.64) | 2.78 (0.005) |
 Understanding treatment options | 272 | 3.49 | 3.89 | 0.40** (0.14, 0.67) | 2.96 (0.003) |
 How much they liked the DA | 272 | 3.77 | 4.09 | 0.32* (0.04, 0.59) | 2.28 (0.022) |
Patient–physician communication: | |||||
 COMRADE |  | 2414.25 | 4.28 | 0.03 (− 0.13, 0.18) | 0.31 (0.757) |
 PICS: MD facilitation |  | 2391.69 | 1.75 | 0.06 (− 0.02, 0.13) | 1.47 (0.141) |