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Table 3 Baseline knowledge scores compared between control and intervention subgroups

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

Variable Control Intervention p-value
  n Mean Standard deviation n Mean Standard deviation  
Age (years)
  < 36 32 55.94 17.01 39 56.41 17.09 0.908
  ≥ 36 40 46.75 19.13 31 50.65 15.26 0.357
Sex
 Female 29 56.90 16.93 34 56.47 17.73 0.923
 Male 43 46.74 18.86 36 51.39 14.96 0.236
Education
  < High school 13 35.39 19.42 8 46.25 9.16 0.157
  ≥ High school 59 54.24 16.84 62 54.84 16.96 0.845
Injury severity score
4 55 51.09 18.82 57 54.04 16.89 0.385
  > 4 17 50.00 18.71 13 53.08 14.94 0.631
Transferred
 Yes 16 52.50 20.49 19 55.26 14.67 0.646
 No 56 50.36 18.29 51 53.33 17.17 0.389
Arrival time
 8–16 h 30 49.00 16.47 36 51.67 16.30 0.513
 Others 42 52.14 20.19 34 56.18 16.52 0.351
Physician
 Physician A 18 56.67 16.80 16 52.50 14.38 0.446
 Physician B 7 47.14 19.76 10 56.00 18.97 0.366
 Physician C 14 47.86 19.29 6 53.33 21.60 0.581
 Physician D 11 45.46 22.07 12 60.00 15.37 0.079
 Physician E 9 52.22 17.87 14 50.00 20.00 0.789
 Physician F 13 51.54 18.64 12 52.50 11.38 0.879