Table 2.

A Estimated odds ratios for use of CT or MRI vs no CT or MRI.

	OR	95%-CI	P
Age
6 to 11	1.98	1.01–4.05	.053
12 to 18	3.32	1.73–6.70	<.001
Male gender	1.49	0.99–2.25	.058
Length of hospital stay	1.02	1.01–1.04	.011
Pediatrics	3.98	2.05–8.06	<.001
General surgery	4.82	2.55–9.58	<.001
Admission to university hospital	1.97	1.07–3.69	.031
Traumatic non-intraabdominal-comorbidity∗	2.53	1.63–3.98	<.001