Table 4 Postoperative complications in the LG and OG groups after PSM

Overall complications^a

10 (18.2)

13 (23.6)

0.495

0.482

Grade I

0 (0.0)

1 (1.8)

 − 

1.000

 Delayed wound healing

0 (0.0)

1 (1.8)

Grade II

8 (14.5)

7 (12.7)

0.077

0.781

 Pleural effusion

3 (5.5)

0(0.0)

 Pulmonary infection

1 (1.8)

7 (12.7)

 Intestinal obstruction

3 (5.5)

0 (0.0)

 Wound infection

1 (1.8)

0 (0.0)

Grade III

2 (3.6)

2 (3.6)

 − 

1.000

 Intraperitoneal hemorrhage

0 (0.0)

1 (1.8)

 Delayed gastric emptying

1 (1.8)

0 (0.0)

 Duodenal stump fistula

1 (1.8)

0 (0.0)

 Anastomotic stenosis

0 (0.0)

1 (1.8)

Grade IV

0 (0.0)

3 (5.5)

 − 

0.243

 Respiratory failure

0 (0.0)

2 (3.6)

 Cerebral embolism

0 (0.0)

1 (1.8)