Table 4. Additional detailed analysis for comparison of the proportion achieving a two-point score in 11 items.

	RS group (n = 99)		CL group (n = 101)
	Number achieving a two-point score	%	Number achieving a two-point score	%	P value (Fisher's exact test)	Evaluation
Ph	99	100.0 %	97	96.0 %	0.121	n.s.
Pb	99	100.0 %	101	100.0 %	N/A	n.s.
Phb	88	88.9 %	99	98.0 %	0.010	S
Pt	99	100.0 %	100	99.0 %	1.000	n.s.
Papilla	41	41.4 %	19	18.8 %	0.001	I
BD (Bmi)	90	90.9 %	91	90.1 %	1.000	n.s.
BD (Bsp)	7	7.1 %	79	78.2 %	< 0.001	S
CD	85	85.9 %	83	82.2 %	0.564	n.s.
GB	47	47.5 %	13	12.9 %	< 0.001	I
CA	89	89.9 %	101	100.0 %	0.001	S
SMA	62	62.6 %	101	100.0 %	< 0.001	S

Ph, pancreatic head; Pb, pancreatic body; Phb, pancreatic neck; Pt, pancreatic tail; BD, bile duct; Bmi, from middle to lower bile duct; Bsp, from superior bile duct to the hepatic portal region; CD, cystic duct; GB, gallbladder; CA, celiac artery; SMA, superior mesenteric artery; N/A, not applicable; n.s., non-significant difference; I, inferiority; S, superiority.