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Table 4 Within group effects of the decision aid

From: The impact of a decision aid about heart disease prevention on patients' discussions with their doctor and their plans for prevention: a pilot randomized trial

 

Baseline

(n = 41)

Post-DA

(n = 41)

Absolute Difference

(95% CI)*

Effect on perception that CHD prevention requires a decision

Same way of lowering the chance of heart attack is right for everyone

40%

33%

-7%

(-22% to 7%)

I am the only one who can decide how to best lower my chances of heart attack

30%

43%

+13%

(-3% to 29%)

Effect on desire to participate in decision-making

Preferred participation in decision making about CHD:

   

   I decide

15%

10%

-5%

(-19% to 7%)

   I decide, consider MD opinion

32%

28%

-5%

(-19% to 7%)

   Share decision

38%

38%

0%

(-15% to 15%)

   MD decides, considers my opinion

5%

10%

+5%

(-7% to 19%)

   MD decides

8%

13%

+5%

(-7% to 19%)

  1. * Exact binomial 95% confidence interval