Odds ratio	95% CI	p value
Abnormal temperature on admission	1.48	0.70–2.99	0.2592
Abnormal respiratory rate on admission	1.04	0.38–2.88	0.9900
Abnormal heart rate on admission	1.36	0.70–2.58	> 0.4096
DOS Temperature	1.89	0.94–3.82	0.0773
RIF peritonism	1.02	0.49–2.14	> 0.9999
CT free fluid	2.04	0.79–5.22	0.1567
Perforated appendix	4.60	1.77–11.04	0.0005
Histology: inflamed	1.17	0.10–7.99	0.6042
Histology: suppurative	0.29	0.03–1.83	0.3420
Histology: gangrenous and perforated	2.15	0.58–9.38	0.4052