Feasibility of single-port laparoscopic appendectomy for retrocecal appendicitis: A propensity score-matched study with multi-port laparoscopic appendectomy

Table 3 Multivariable regression analysis for the independent effect of number of surgical port on postoperative outcomes (for continuous variables)

Postoperative outcomes	Estimate (β/OR)	Standard error	95%CI	P value
Operation time (min, β)a	7.97	1.53	(4.97, 10.97)	< 0.001
EBL (mL, β)b	2.35	0.71	(0.96, 3.74)	0.001
Postoperative pain score (β)	-0.12	0.12	(-0.35, 0.12)	0.311
Hospital day (days, β)	0.16	0.10	(-0.04, 0.36)	0.123
Complication rate (%, OR)	1.80	0.30	(1.00, 3.32)	0.052
JP drain insertion (%, OR)c	0.06	1.07	(0.01, 0.39)	0.010

^aP < 0.001.

^bP = 0.001.

^cP = 0.010.

β: Beta coefficient; OR: Odds ratio; EBL: Estimated blood loss; JP: Jackson-Pratt drain.