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Table 2 Differences in process outcomes by decision aid received

From: Head to head randomized trial of two decision aids for prostate cancer

  N Complex DA Simple DA Abs. diff/(CI) t/(p value)
Knowledge (proportion correct,12 item scale) 279 0.48 0.53 0.05 (− 0.01, 0.11) 1.57 (0.116)
Interest in shared decision making
 Biopsy interview 1012 3.30 3.34 0.04 (− 0.05, 0.14) 0.88 (0.380)
 Pre-clinic interview 281 3.33 3.50 0.16* (0.02, 0.31) 2.20 (0.027)
 Post-clinic interview 241 3.50 3.60 0.10 (− 0.06, 0.26) 1.19 (0.235)
Anxiety
 Biopsy interview 1005 1.02 1.07 0.05 (− 0.04, 0.14) 1.06 (0.290)
 Pre-clinic interview 280 1.08 1.12 0.03 (− 0.13, 0.20) 0.39 (0.694)
 Post-clinic interview 240 2.08 2.15 0.07 (− 0.12, 0.25) 0.72 (0.474)
How helpful was the DA
 Influencing treatment 272 3.02 3.32 0.31 (− 0.02, 0.63) 1.86 (0.063)
 Understanding prostate cancer 272 3.76 4.13 0.38** (0.11, 0.64) 2.78 (0.005)
 Understanding treatment options 272 3.49 3.89 0.40** (0.14, 0.67) 2.96 (0.003)
 How much they liked the DA 272 3.77 4.09 0.32* (0.04, 0.59) 2.28 (0.022)
Patient–physician communication:
 COMRADE   2414.25 4.28 0.03 (− 0.13, 0.18) 0.31 (0.757)
 PICS: MD facilitation   2391.69 1.75 0.06 (− 0.02, 0.13) 1.47 (0.141)
  1. Results analyzed accounting for stratified randomization by site, race and literacy as random effects
  2. *p < 0.05; **p < 0.01; ***p < .001