Table 3.

Single logistic regression analysis of factors related to postoperative complications

Variables	Coefficient	Standard error	Z	P
Incision type (2)	− 1.4798	0.5286	− 2.799	0.00512
Incision length	0.12167	0.04632	2.627	0.00862
BMI	− 0.16907	0.07151	− 2.364	0.0181
Tumor size	0.16963	0.06209	2.732	0.00629
Duration	0.019171	0.004306	4.453	8.48e − 06
Incision range (2)	0.5173	0.6676	0.775	0.438473
Incision range (3)	1.4971	0.6647	2.252	0.024310
Incision range (4)	2.4024	0.6688	3.592	0.000328
Blood loss	0.0022275	0.0005908	3.770	0.000163