Table 4.

Multivariable analysis for factors associated with time to survival with good neurological outcome.

Model 1: Post ROSC hemoglobin, all patients N=146.
Factors	HR	95% Conf.interval	P value
Post ROSC Hemoglobin ≥ 10	6.02	1.75–20.72	0.004
Time from collapse to ROSC minutes	0.92	0.88–0.96	<0.0001
Active seizure on presentation	0.22	0.06–0.78	0.02
Shock requiring pressors	0.37	0.14–0.94	0.04

Model 2: Time varying hemoglobin, all patients N=146.
Factors	HR	95% Conf.interval	P value
Time varying Hemoglobin ≥ 10	1.74	0.78–3.88	0.18
Time from collapse to ROSC minutes	0.92	0.88–0.97	0.001
Active seizure on presentation	0.28	0.08–0.92	0.04
Shock requiring pressors	0.52	0.21–1.31	0.17

HR: Hazard ratio, ROSC: return of spontaneous circulation.