Table 3.

Unadjusted 30-day complication rates by body mass index group

	Normal (n = 2545)	Overweight (n = 2673)	Obese (n = 2747)	P *
Major complications (Clavien–Dindo III–V)				0·040
No	2238 (87·9)	2351 (88·0)	2468 (89·8)
Yes	307 (12·1)	322 (12·0)	279 (10·2)
Surgical-site infection				0·274
No	2410 (94·7)	2507 (93·8)	2576 (93·8)
Yes	135 (5·3)	166 (6·2)	171 (6·2)

Values in parentheses are percentages.

^*χ² test.