Outcome measure | Control group (N = 31) | Intervention group (N = 32) | t/χ2 | P value |
---|---|---|---|---|
T1 (1 day before surgery) | ||||
Decision conflict, mean (SD) | ||||
 Information and values | 28.23 ± 14.29 | 25.14 ± 20.89 | 0.684a | 0.497 |
 Decision support and decision effectiveness | 25.05 ± 11.24 | 17.23 ± 13.47 | 2.496a | 0.015 |
 Decision uncertainty | 45.16 ± 15.70 | 23.83 ± 16.30 | 5.287a |  < 0.001 |
 Total score | 28.73 ± 10.61 | 21.00 ± 14.09 | 2.455a | 0.017 |
T2 (1 week after surgery) | ||||
Preferred decision-making roles, n (%) | Â | Â | 9.314b | 0.017 |
 Active | 9 (29.03) | 10 (31.25) |  |  |
 Collaborative | 7 (22.58) | 17 (53.13) |  |  |
 Passive | 13 (41.94) | 5 (15.63) |  |  |
 Full representative of family members | 2 (6.45) | 0 (0.00) |  |  |
Unmet information needs, mean (SD) | ||||
 Information needs | 6.35 ± 2.47 | 4.66 ± 2.85 | 2.526a | 0.014 |
 Work and financial needs | 17.39 ± 5.44 | 13.56 ± 5.76 | 2.706a | 0.009 |
 Access and continuity of care | 15.26 ± 5.00 | 10.13 ± 4.98 | 4.081a |  < 0.001 |
 Coping, sharing and emotional needs | 30.13 ± 10.55 | 21.34 ± 10.98 | 3.236a | 0.002 |
 Total score | 69.13 ± 19.21 | 49.69 ± 20.82 | 3.848a |  < 0.001 |
T3 (1 months after surgery) | ||||
Decision satisfaction, mean (SD) | ||||
 Information | 74.77 ± 16.09 | 85.47 ± 17.08 | −2.556a | 0.013 |
 Deliberation | 74.74 ± 17.53 | 86.44 ± 16.93 | −2.694a | 0.009 |
 Decision | 69.9 ± 13.21 | 90.63 ± 13.52 | −6.151a |  < 0.001 |
 Global satisfaction and confidence | 77.26 ± 14.42 | 87.66 ± 18.62 | −2.472a | 0.016 |
 Total score | 75.45 ± 15.58 | 86.78 ± 17.32 | −2.727a | 0.008 |