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Table 3 Counselees' level of accurate knowledge about breast cancer and heredity.

From: Effects of a pre-visit educational website on information recall and needs fulfilment in breast cancer genetic counselling, a randomized controlled trial

  Baseline (T0) Post-visit (T1)  
  UC group
(n= 94)
Intervention group (n= 103) UC group
(n= 94)
Intervention group (n= 103)  
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  
  n % n % n % n %  
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
  1. a Between group differences at T1. bc, breast cancer; UC, usual care.