Table 4.

Score comparisons of the first attempt and the last attempt of the separate LS-CAT items as assessed by the Mann–Whitney U test

	Observer A				Observer B
	Mean rank				Mean rank
	First attempt	Last attempt	U	p	First attempt	Last attempt	U	p
Instrument handling	27.06	9.94	8.00	< 0.001	27.19	9.81	5.50	< 0.001
Tissue handling	26.97	10.03	9.50	< 0.001	26.17	10.83	24.00	< 0.001
Pickup needle in correct orientation	27.31	9.69	3.50	< 0.001	27.00	10.00	9.00	< 0.001
Pass needle through edges of tissue	25.64	11.36	33.50	< 0.001	25.58	11.42	34.50	< 0.001
Create first double throw	25.94	11.06	28.00	< 0.001	26.06	10.94	26.00	< 0.001
Knot tying	26.17	10.83	24.00	< 0.001	25.53	11.47	35.50	< 0.001
Total errors	25.94	11.06	28.00	< 0.001	25.19	11.81	41.50	< 0.001
Total score	27.31	9.69	3.50	< 0.001	27.17	9.83	6.00	< 0.001