Impact of visceral obesity on postoperative complications and oncological outcomes in elderly patients with colorectal cancer

Table 2 Monitoring of postoperative complications, n (%)

Complications	Time point	Abdominal obesity group (n = 80)	Non-abdominal obesity group (n = 70)	χ2/t	P value
Pulmonary infection	Day 1	10 (12.50)	4 (5.71)	2.031	0.154
	Day 3	16 (20.00)	6 (8.57)	4.319	0.038
Incision infection	Day 3	7 (8.75)	3 (4.29)	1.132	0.287
Urinary system infection	Day 3	6 (7.50)	2 (2.86)	1.392	0.238
Intestinal obstruction	Day 7	7 (8.75)	3 (4.29)	1.132	0.287
Anastomotic leakage	Day 7	8 (10.00)	2 (2.86)	4.121	0.042
Postoperative haemorrhage	Before discharge	5 (6.25)	1 (1.43)	2.143	0.143
Deep vein thrombosis	Before discharge	4 (5.00)	0 (0.00)	3.677	0.055
Clavien-Dindo class ≥ III	Before discharge	15 (18.75)	5 (7.14)	4.726	0.03

P < 0.05 indicated significant difference.