Table 3.

Subgroup analysis of risk factors for AL according to site of anastomosis

Item		Small bowel anastomosis	Colonic anastomosis	Ileocolic anastomosis
Leak/total number		11/112	18/81	3/31
Age >40	Leak/total number	6/47	15/65	1/22
	Odds ratio (P value)	1.69 (0.41)	1.18 (0.82)	0.17 (0.16)
Male gender	Leak/total number	5/47	18/69	1/10
	Odds ratio (P value)	1.27 (0.708)	2.96 (0.04)	1.06 (0.96)
Chronic liver disease	Leak/total number	5/14	9/16	1/3
	Odds ratio (P value)	8.52 (0.002)	8 (0.001)	6.5 (0.18)
More than one co-morbidity	Leak/total number	3/5	1/3	0/1
	Odds ratio (P value)	18.5 (0.003)	1.79 (0.64)	2.6 (0.57)
Emergent anastomosis	Leak/total number	8/57	12/33	1/12
	Odds ratio (P value)	2.61 (0.17)	3.73 (0.02)	0.77 (0.84)
Preoperative leukocytosis	Leak/total number	4/23	14/43	0/14
	Odds ratio (P value)	2.31 (0.21)	3.85 (0.03)	0.14 (0.21)
Intraoperative blood transfusion	Leak/total number	3/28	12/35	0/4
	Odds ratio (P value)	1.08 (0.91)	3.25 (0.03 )	0.77 (0.87)

Significant P value (<0.05) is written in italics