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Table 3 Informed decisions: post-test, latent, and three-month follow-up, frequencies (%)

From: Informed choice about breast cancer prevention: randomized controlled trial of an online decision aid intervention

  Intervention
(n= 383)
Standard control (n= 102) Three-month control (n= 100) a Between-groups differences
Post-test informed decisionsb
     Negative attitudes, uptake unlikely 180 (47.0%) 4 (3.9%) -  
     Neutral attitudes, uptake neither likely nor unlikely 15 (3.9%) 2 (2.0%) -  
     Positive attitudes, uptake likely 7 (1.8%) 0 -  
Total post-test informed decisions 202 (52.7%) 6 (5.9%)   X2 (1) = 71.97, P <0.001
Follow-up informed decisions b
     Negative attitudes, decided against drug 48 (12.5%) 6 (5.9%) 1 (1.0%)  
     Neutral attitudes, no decision made 17 (4.4%) 6 (5.9%) 7 (7.0%)  
     Positive attitudes, decided to take drugc 0 0 0  
Total follow-up informed decisions 65 (16.9%) 12 (11.8%) 8 (8.0%) X2 (2) = 5.40, P = 0.067
Latent knowledge informed decisions b d
     Negative attitudes, decided against drug 131 (34.2%) 3 (2.9%) -  
     Neutral attitudes, no decision made 36 (9.4%) 0 -  
     Positive attitudes, decided to take drugc 0 0 -  
Total latent informed decisions 167 (43.6%) 3 (2.9%)   X2 (1) = 58.54, P <0.001
  1. a Three-month control group did not complete measures at post-test; In all cases of informed decision making level of knowledge needs to be sufficient. Attitudes should align with likelihood of taking the drug. Participants in the three-month control group did not answer knowledge questions at post-test; c At three3 month follow-up, of the two participants who decided to take raloxifene, one had sufficient knowledge but neutral attitudes and one had insufficient knowledge and positive attitudes. d Latent informed decisions consisted of sufficient post-test knowledge, and aligned attitudes and decisions at follow-up.