Table 1.

Patient characteristics

	All procedures (n = 412)	Procedures without infection (n = 310)	Procedures with infection (n = 102)
Male	226 (55)	167 (54)	59 (58)
Age (months)	6.8 (1.7–44)	11.3 (3.0–68)	3.2 (0.5–9.2)
Weight (kg)	6.7 (4.1–15)	8.5 (4.6–17.6)	4.6 (3.5–7.1)
Postoperative PICU stay (days)	2 (1–6)	2 (1–4)	7 (3–14)
Postoperative hospital stay (days)	7 (5–14)	6 (5–9)	20 (13–30)
Surgical complexitya	8.0 (6.5–10.0)	8.0 (6.0–9.0)	9.0 (7.0–11.5)

Values stated as n (% of [infection] group) or median (interquartile range)

^aSurgical complexity was calculated using the Aristotle score [24]