Table 3 Counselees' level of accurate knowledge about breast cancer and heredity.
| Â | Baseline (T0) | Post-visit (T1) | Â | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Â | UC group (n= 94) | Intervention group (n= 103) | UC group (n= 94) | Intervention group (n= 103) | Â | ||||
Scale | Mean | SD | Mean | SD | Mean | SD | Mean | SD | P a |
Accurate knowledge score (0-7) | 4.65 | 1.46 | 4.64 | 1.60 | 5.71 | 1.53 | 6.10 | 1.13 | .03 |
True/false knowledge items: | correct answer | correct answer | correct answer | correct answer | Â | ||||
| Â | n | % | n | % | n | % | n | % | Â |
Early detection and treatment of bc lead to longer survival than late detection and treatment (True) | 86 | 96.6 | 98 | 97.0 | 79 | 94.1 | 90 | 94.7 | .74 |
All women who are carrier of an altered gene (mutation) for bc, will develop bc in the long term (False) | 39 | 43.8 | 47 | 46.5 | 56 | 66.7 | 72 | 75.8 | .048 |
A woman who has a sister with an altered gene (mutation) for bc, has a 50% change (1 in 2) to also carry the mutation herself (True) | 31 | 35.2 | 34 | 33.7 | 52 | 61.9 | 70 | 73.7 | .09 |
A woman who does not have an altered gene (mutation) for bc, can nevertheless develop bc (True) | 70 | 78.7 | 77 | 77.8 | 78 | 92.9 | 89 | 93.7 | .74 |
Physical examination is necessary only when you have complaints; at that point it is soon enough to prevent bc (False) | 84 | 94.4 | 93 | 93.0 | 76 | 90.1 | 89 | 93.7 | .56 |
If a father has an altered gene (mutation) for bc, then his children have 50% chance (1 in 2) of also having this mutation (True) | 27 | 30.3 | 38 | 37.6 | 60 | 71.4 | 81 | 85.3 | .02 |
If in a family, in which bc frequently occurs, no altered gene (mutation) for bc is found, then regular breast surveillance is no longer necessary (False) | 77 | 86.5 | 82 | 81.2 | 79 | 94.1 | 88 | 92.6 | .50 |