Table 3.

Adjusted risk factors for the number of critical interventions according to clinical outcome, defined as in-hospital mortality or intensive care unit admission.

Number of CrIs	n	Risk factor analysis
		Odds ratio	95% CI	p-value
0	27,668	1 (ref)
1	4364	3.10	2.51–3.82	< 0.001
2	1904	5.40	4.28–6 83	< 0.001
3	2082	6.83	5.53–8.43	< 0.001
4	1535	11.23	9.16–13.75	< 0.001
5	3122	23.05	19.88–26.74	< 0.001
6	675	33.43	27.10–41.23	< 0.001

CrI Odds ratios were adjusted for age group, sex, KTAS, AVPU, route of ER visit, method of transportation, and categorized vital signs in phase.