Table 3.

Factors associated with ICU mortality in multivariable logistic regression

Variable	Odds ratio	95% confidence interval	p value
Age (year)	1.03	1.02, 1.05	< 0.001
Male gender	1.39	0.87, 2.22	0.164
Public setting	0.63	0.41, 0.97	0.034
Witnessed CA	0.96	0.39, 2.35	0.931
Bystander CPR	0.76	0.50, 1.16	0.200
Initial VF/VT	0.43	0.26, 0.71	0.001
Collapse to ROSC, per min	1.05	1.03, 1.07	< 0.001
Cardiac cause-related CA	0.48	0.29, 0.80	0.005
Post-resus. shock	1.31	0.89, 1.96	0.181
Base deficit quartiles (mEq/l)
< 5	1.00	1.00, 1.00
5–9	1.76	1.07, 2.91	0.026
9–13	3.82	2.20, 6.65	< 0.001
> 13	5.13	2.67, 9.88	< 0.001

CA cardiac arrest; CPR cardiopulmonary resuscitation; ROSC restoration of spontaneous circulation