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Table 3 Decisional outcome - knowledge assessment

From: Shared decision making for patients with type 2 diabetes: a randomized trial in primary care

  Decision aid Usual care Mean diff(95% CI)
Knowledge transfer at baseline1,2, N 27 10  
  Mean (95% CI) 56.8 (49.4, 64.2) 33.3 (20.8, 45.9) 23.5 (9.7, 37.3)
Knowledge transfer at 3 months1,2, N 20 8  
  Mean (95% CI) 56.7 (47.4, 65.9) 50.0 (35.1, 64.9) 6.7 (−9.9, 23.2)
Knowledge transfer at 6 months1,2, N 19 8  
  Mean (95% CI) 56.1 (48.5, 63.8) 54.2 (36.3, 72.0) 2.0 (−13.3, 17.3)
Knowledge of Risk w/out medication3,4,5,6 12 (52%) 16 (44%) 1.2 (0.7, 2.0)
Knowledge of Risk w/ medication3,4,5,6 14 (61%) 12 (33%) 1.8 (1.0, 3.2)
  1. *p<0.05.
  2. 1Diabetes medication discussion only.
  3. 2% correct out of total asked (N=6 questions).
  4. 3Statin discussion only.
  5. 4Response to risk knowledge was correct.
  6. 5Missing 5 responses (DA=3, UC=2).
  7. 6Relative risk and 95% confidence interval.