Table 1.

The characteristics of the residents

	Experimental group	Control group	p
Age (years)	27(25–33)	27(25–32)	0.68
Gender			0.49
Male	27	21
Female	1	3
Educational background			0.25
BS	3	6
MM	13	12
MD	12	6
Specialty			0.67
General surgery	11	6
Orthopedics	3	4
Urology	6	3
Neurosurgery	4	4
Cardiothoracic surgery	3	5
Plastic surgery	1	2

BS: Bachelor's degree; MM: Master of Medicine; MD: Doctor of Medicine