Table 5. Mean risk perception (s.d.), percentage under- (−), accurate (=), and overestimates (+) by intervention group.
|
T2 |
T3 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Group | Mean (s.d.) | −(%) | =(%) | +(%) | Group | Mean (s.d.) | −(%) | =(%) | +(%) | |
| General | ||||||||||
| bc risk | DA | 25.3 (17.4) | 2 | 41 | 57 | DA_b | 20.4 (18.6) | 9 | 56 | 35 |
| C | 27.0 (19.8) | 3 | 38 | 59 | DA_a | 21.0 (18.8) | 5 | 59 | 36 | |
| oc risk | DA | 20.3 (17.9) | 1 | 11 | 88 | DA_b | 16.4 (21.0) | 2 | 24 | 74 |
| C | 21.1 (18.4) | 2 | 7 | 91 | DA_a | 11.9 (12.8) | 0 | 21 | 79 | |
| BRCA1/2 | ||||||||||
| bc risk | DA | 65.2 (17.4) | 40 | 57 | 3 | DA_b | 70.6 (14.7) | 28 | 68 | 4 |
| C | 62.8 (19.2) | 43 | 53 | 4 | DA_a | 69.5 (15.3) | 27 | 70 | 3 | |
| oc risk* | DA | 55.6 (18.9) | 3 | 65 | 32 | DA_b | 52.6 (17.7) | 2 | 73 | 24 |
| C | 55.5 (21.7) | 7 | 54 | 39 | DA_a | 48.7 (20.5) | 5 | 72 | 23 | |
| Cure bc* | DA | 60.4 (21.3) | 49 | 43 | 8 | DA_b | 61.9 (24.2) | 39 | 50 | 11 |
| C | 56.2 (12.4) | 59 | 32 | 9 | DA_a | 68.0 (17.1) | 34 | 58 | 8 | |
| Cure oc*,† | DA | 44.7 (22.0) | 33 | 38 | 37 | DA_b | 37.9 (26.7) | 48 | 24 | 28 |
| C | 45.3 (26.9) | 39 | 24 | 29 | DA_a | 40.4 (22.4) | 32 | 47 | 21 | |
| bc risk after PM | DA | 10.3 (15.0) | 37 | 43 | 20 | DA_b | 8.1 (9.3) | 41 | 41 | 18 |
| C | 15.8 (20.8) | 30 | 38 | 32 | DA_a | 8.7 (9.4) | 38 | 42 | 20 | |
| oc risk after PO | DA | 8.7 (14.4) | 50 | 32 | 18 | DA_b | 6.3 (9.3) | 48 | 39 | 13 |
| C | 13.0 (20.5) | 41 | 32 | 27 | DA_a | 6.7 (6.8) | 45 | 38 | 17 | |
C: control; bc: breast cancer; oc: ovarian cancer; PM: prophylactic mastectomy; PO: prophylactic oophorectomy.
*
P<0.05 for risk accuracy comparing the DA and control groups.
†
P<0.05 for risk accuracy comparing the DA_b and DA_a groups.