Table 3. Results from multivariate logistic regressions.

Abbreviations: AAE, any adverse event; CI, confidence interval; CT, computerized tomography scan; MAE, moderate adverse event; OR, odds ratio; PE, physical examination; SAE, severe adverse event; WBC, white blood cell; XR, X-ray radiograph

Variables	AAE			MAE			SAE
	OR	95% CI	P	OR	95% CI	P	OR	95% CI	P
Age (years)	0.97	0.8-1.1	0.62	0.97	0.8-1.1	0.58	1.03	0.9-1.2	0.61
Gender	0.91	0.3-2.6	0.85	0.91	0.2-2.5	0.42	0.47	0.1-1.5	0.20
Non-normal PE	0.84	0.3-2.4	0.76	0.84	0.3-2.4	0.16	1.15	0.4-3.7	0.82
Fever	0.68	0.2-2.2	0.52	0.68	0.2-2.2	0.92	0.84	0.2-3.1	0.80
WBC	1.04	0.9-1.2	0.38	1.01	0.9-1.1	0.82	1.03	0.9-1.1	0.45
Bands	1.01	0.9-1.1	0.49	0.97	0.9-1.1	0.43	1.04	0.9-1.1	0.27
Non-normal XR	32	3.5-100+	<0.001	17	3.3-90	<0.001	1.08	0.2-1.2	0.94
Non-normal CT	27	2.5-100+	0.001	1.2	0.1-14	0.91	15.4	2.2-100+	0.002