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Table 5 Time spent looking at the decision aid (proportion in each category)

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

  Simple DA Complex DA Abs. diff/(CI) z/(p value)
Less than 30 min 0.15 0.27 0.13*** (0.05, 0.20) 3.41 (0.001)
30–60 min 0.47 0.51 0.03 (− 0.00, 0.07) 1.76 (0.078)
1–2 h 0.25 0.15  − 0.09** (− 0.15, − 0.04)  − 3.22 (0.001)
More than 2 h 0.13 0.07  − 0.07** (− 0.11, − 0.02)  − 3.07 (0.002)
  1. Results analyzed accounting for stratified randomization by site, race and literacy as random effects
  2. *p < 0.05; **p < 0.01; ***p < .001