Table 2.

Postoperative complications in younger and elderly patients

Variables	Elderly (≥70 years) (n=111)	Younger (<70 years) (n=901)	p-value
Peritoneal effusion	29 (26.1%)	215 (23.9%)	0.638
Hydrothorax	5 (4.5%)	77 (8.5%)	0.194
Liver failure	1 (0.9%)	29 (3.2%)	0.241
Biliary/pancreatic fistula	15 (13.5%)	74 (8.2%)	0.074
Peritoneal infection	9 (8.1%)	59 (6.5%)	0.545
Pulmonary infection	8 (7.2%)	37 (4.1%)	0.142
Intraperitoneal bleeding	9 (8.1%)	29 (3.2%)	0.029
Renal failure	1 (0.9%)	4 (0.4%)	0.517
Systemic sepsis	17 (15.3%)	67 (7.4%)	0.009
Wound infection	4 (3.6%)	39 (4.3%)	1.000
Urinary tract infection	13 (11.7%)	32 (3.6%)	<0.001
Gastric emptying dysfunction	4 (3.6%)	34 (3.8%)	1.000
Clavien–Dindo classification			0.728
Grade I–II	37 (33.3%)	273 (30.3%)
Grade III–V	11 (9.9%)	100 (11.1%)
All complications	48 (43.2%)	373 (41.4%)	0.919
In-hospital death	2 (1.8%)	7 (0.8%)	0.278

Note: p-values <0.05 are shown in bold.