102 Chapter 3 Wound separation (mm) 21 13.6 (4.5) 11.519 (6.8) 3.1 (6.3) -2.597 .009 Improper suturing technique (n) 20 3.0 (4.0) 0.5 (2.0) 1.0 (4) -2.108 .035 Needle handling Percentage of stitches within optimal depth (%) 21 50.0 (25.9) 60.0 (54.0) -3.0 (50.0) 0.000 1.000 Number of unnecessary needle piercing points (n) 21 75.5 (65.8) 48.0 (29.0) 29.5 (75) -2.381 .017 The total number of entrance and exit points through which the needle has passed (n) 21 18.0 (16.0) 24.0 (14.0) -6.0 (15) -0.898 .369 Suture handling Excessive force - Suture breakage (n) 21 0.0 (0.0) 0.0 (0.0) 0.0 (0) -1.000 .317 Tissue handling Number of times the tissue was grasped (n) 21 13.0 (13.3) 11.0 (11.0) 6.5 (16) -0.785 .433 Variable Proctor guided group Number of participants of which data was available Pre-intervention score, Median (IQR) Post-intervention score, Median (IQR) Difference in score, Median (IQR) Z-value$ / T-value* p-value Wilcoxon Signed Ranks Test
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