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Table 4 Aggregate results of students’ surgical skills pre- and post-course

From: Effectivity of near-peer teaching in training of basic surgical skills – a randomized controlled trial

 

Pre-course

Post-course

Improvement

Wilcoxon (p)

Z

Overall results

119.863

153.553

33.690*

<  0.001

−6.736

Knotting

27.767

39.783

12.017*

<  0.001

−6.740

 Two-handed knotting

13.583

19.333

5.750*

<  0.001

−6.724

 One-handed knotting

14.183

20.450

6.267*

<  0.001

−6.514

Sutures

72.533

88.217

15.683*

<  0.001

−6.618

 Simple interrupted

24.067

29.467

5.400*

<  0.001

−6.205

 Vertical mattress (Donati)

24.667

29.517

4.850*

<  0.001

−5.799

 Intracutaneous running

23.800

29.233

5.433*

<  0.001

−6.342

Laparoscopic basics

19.563

25.553

5.990*

<  0.001

−6.283

  1. The average points and the results of the Wilcoxon signed-rank test (*significant difference between pre- and post-course results)