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

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

		Intervention (n= 383)	Standard control (n= 102)	Three-month control (n= 100) ^a	Between-groups differences
Post-test informed decisions^b
	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 drug^c	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 drug^c	0	0	-
Total latent informed decisions		167 (43.6%)	3 (2.9%)		X² (1) = 58.54, P <0.001

^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.

ISSN: 1465-542X