Comparison of short- and long-term outcomes of laparoscopic vs open resection for gastric gastrointestinal stromal tumors

Table 2 Comparison of intraoperative and postoperative outcomes between laparoscopic resection and open resection groups after propensity score matching

Characteristics	LR group (n = 80)	OR group (n = 80)	t/χ2	P value
Operative time (min)	90.83 ± 37.69	118.38 ± 42.74	4.325	0.000
Intraoperative blood loss (mL)	91.88 ± 65.82	121.25 ± 103.05	2.149	0.033
Perioperative blood transfusion
No	79	77	1.026	0.620
Yes	1	3
Time to first flatus (d)	2.63 ± 0.62	3.01 ± 0.46	4.459	0.000
Time to oral intake (d)	3.86 ± 1.17	5.24 ± 5.04	2.377	0.019
Length of hospital stay (d)	9.26 ± 3.89	11.73 ± 9.34	2.176	0.031
Complications1
No	95% (76/80)	88.75% (71/80)	2.093	0.247
Yes	5% (4/80)	11.25% (9/80)

¹Postoperative complications were classified according to the Clavien-Dindo classification. LR: Laparoscopic resection; OR: Open resection; PSM: Propensity score matching.