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Table 2 Baseline and post-education knowledge scores

From: Educational video-assisted versus conventional informed consent for trauma-related debridement surgery: a parallel group randomized controlled trial

Knowledge score Control (n = 72) Intervention (n = 70) p-valued
  Mean Standard Deviation Mean Standard Deviation  
Baseline 50.83 18.67 53.86 16.44 0.308
Post-education 61.67 18.39 72.57 16.21 < 0.001
cDifference 10.83 11.23 18.71 16.76 0.001a
  Number (%) Number (%)  
10 49 (68.06) 31 (44.29) 0.001b
 20 16 (22.22) 15 (21.43)  
  ≥ 30 7 (9.72) 24 (34.29)  
  1. aUnequal variance test
  2. bFisher’s exact test
  3. cDifference = (Post-education knowledge score) - (Baseline knowledge score)
  4. dIntervention vs Control