Table 1.

Patient characteristics.

	All departments	Pediatric Departments	Non-Pediatric Departments	P†	Pediatrics	Pediatric surgery	General surgery	P‡
Total patients [n (%)]	524	279 (53.2)	245 (46.8)		150 (28.6)	129 (24.6)	245 (46.8)
Sex
Female [n (%)]	196 (37.4)	113 (40.5)	83 (33.9)	.1407	63 (42.0)	50 (38.8)	83 (33.9)	.2521
Male [n (%)]	328 (62.6)	166 (59.5)	162 (66.1)		87 (58.0)	79 (61.2)	162 (66.1)
Mean age (years)	11.0 ± 5.2	8.5 ± 4.9	13.9 ± 3.9	<.0001	9.0 ± 5.0	7.9 ± 4.7	13.9 ± 3.9	<.0001
Age [years]
≤ 5 [n (%)]	96 (18.3)	84 (30.1)	12 (4.9)	<.0001	38 (25.3)	46 (35.7)	12 (4.9)	<.0001
6 to 11 [n (%)]	157 (30.0)	106 (38.0)	51 (20.8)	<.0001	58 (38.7)	48 (37.2)	51 (20.8)	.0001
12 to 18 [n (%)]	271 (51.7)	89 (31.9)	182 (74.3)	<.0001	54 (36.0)	35 (27.1)	182 (74.3)	<.0001
Type of hospital
University hospital [n (%)]	94 (17.9)	71 (25.4)	23 (9.4)	<.0001	12 (8.0)	59 (45.7)	23 (9.4)	<.0001
Non-University hospital [n (%)]	430 (82.1)	208 (74.6)	222 (90.6)		138 (92.0)	70 (54.3)	222 (90.6)
Imaging
CT [n (%)]	164 (31.3)	55 (19.7)	109 (44.5)	<.0001	40 (26.7)	15 (11.6)	109 (44.5)	<.0001
MRI [n (%)]	34 (6.5)	25 (9.0)	9 (3.7)	.0230	16 (10.7)	9 (7.0)	9 (3.7)	.0228
CT or MRI [n (%)]	187 (35.7)	72 (25.8)	115 (46.9)	<.0001	51 (34.0)	21 (16.3)	115 (46.9)	<.0001
CT & MRI [n (%)]	11 (2.1)	8 (2.9)	3 (1.2)	.2326	5 (3.3)	3 (2.3)	3 (1.2)	.3307
Without	337 (64.3)	207 (74.2)	130 (53.1)	<.0001	99 (66.0)	108 (83.7)	130 (53.1)	<.0001
Mean length of hospital stay [days]	10.2 ± 19.1	11.5 ± 24.7	8.8 ± 8.9	.1653	10.1 ± 14.4	13.1 ± 32.8	8.8 ± 8.9	.0205
Comorbidity
traumatic non-intraabdominal-comorbidity ∗	359 (68.5)	189 (67.7)	170 (69.4)	.7562	97 (64.7)	92 (71.3)	170 (69.4)	.4525
traumatic non-abdominal-comorbidity: head trauma & thoracic trauma ∗∗	233 (44.5)	126 (45.2)	107 (43.7)	.7996	65 (43.3)	61 (47.3)	107 (43.7)	.7573