A Retrospective Study of Risk Factors for Symptomatic Anastomotic Leakage after Laparoscopic Anterior Resection of the Rectal Cancer without a Diverting Stoma

Table 3

Surgery-related variables.

Variables	AL (+) ()	AL (−) ()
Natural orifice specimen extraction surgery, (%)	1 (5.6%)	32 (6.7%)	1.000
Operation time (min, )			0.206
Consolidation suture, (%)	1 (5.6%)	71 (14.9%)	0.448
Intraoperative chemotherapy, (%)	12 (66.7%)	159 (33.3%)	0.003
Estimated blood loss (mL, )			0.506
Transfusion, (%)	1 (5.6%)	22 (4.6%)	0.641
Left colic artery preservation, (%)	1 (5.6%)	39 (8.2%)	1.000
Transanal tube, (%)	7 (38.9%)	270 (56.5%)	0.140
Anastomotic level from anal verge (cm)			0.033
≤4	11 (61.1%)	174 (36.4%)
>4	7 (39.9%)	304 (63.6%)
Number of stapler firing, (%)			0.819
1 and 2	13 (72.2%)	370 (7740%)
Greater than 2	5 (27.8%)	108 (22.6%)

AL: anastomotic leakage; SD: standard deviation.