Patient-reported quality of the decision-making process outcomes
| Outcomes* | Usual care (N=103) | Decision aid (N=101) | Mean difference | p Value | ICC |
|---|---|---|---|---|---|
| Overall decisional comfort; 0–100, 100=no conflict (95% CI) | 75.1 (61.0 to 89.2) | 82.0 (70.0 to 94.0) | −6.9 (−21.5 to 7.7) | 0.30 | 0.305 |
| Informed subscale (95% CI) | 65.4 (44.3 to 86.5) | 78.8 (60.9 to 96.8) | −13.4 (−35.3 to 8.4) | 0.19 | 0.265 |
| Support subscale (95% CI) | 77.6 (61.3 to 93.9) | 80.7 (66.9 to 94.6) | −3.1 (−20.0 to 13.8) | 0.67 | 0.301 |
| Effective subscale (95% CI) | 80.5 (69.9 to 91.1) | 85.2 (76.2 to 94.3) | −4.7 (−15.7 to 6.3) | 0.35 | 0.197 |
| Knowledge; 0–100, 100=all correct answers (95% CI) | 70.7% (53.4% to 88.1%) | 68.4% (53.6% to 83.2%) | 2.3% (−15.7% to 20.4%) | 0.77 | 0.234 |
| Satisfaction with decision made, N (%) | |||||
| Strongly agree | 37 (35.9) | 52 (51.5) | NA | 0.37 | 0.063 |
| Agree | 58 (56.3) | 38 (37.6) | |||
| Neither agree nor disagree | 7 (6.8) | 11 (10.9) | |||
| Disagree | 1 (1.0) | 0 (0) | |||
| Strongly disagree | 0 (0) | 0 (0) | |||
| Satisfaction with the conversation with the clinician, N (%) | |||||
| Strongly agree | 58 (56.3) | 66 (65.3) | NA | 0.54 | 0.105 |
| Agree | 44 (42.7) | 31 (30.7) | |||
| Neither agree nor disagree | 1 (1.0) | 4 (4.0) | |||
| Disagree | 0 (0) | 0 (0) | |||
| Strongly disagree | 0 (0) | 0 (0) | |||
*Missing responses imputed: overall decisional comfort, N=4 (3 in the decision aid arm); informed subscale, N=2 (2 in the decision aid arm); support subscale, N=3 (3 in the decision aid arm); effective subscale, N=3 (2 in the decision aid arm); knowledge, N=2 (2 in the decision aid arm); satisfaction with decision, N=4 (3 in the decision aid arm); satisfaction with conversation, N=2 (2 in the decision aid arm).
ICC, intracluster correlation coefficient; NA, not applicable.