TABLE 2.

Hazard Ratios (95% CI) From Weibull Survival Model (Instantaneous Hazard) and Cumulative Regression Model (Cumulative Hazard) for Death and Discharge

Variables	Instantaneous Hazard		Cumulative Hazard
	Death HR (95% CI)	Discharge HR (95% CI)	Death HR (95% CI)	Discharge HR (95% CI)
Male	1.22 (1.06–1.40)	0.87 (0.77–1.00)	1.10 (0.96–1.27)	0.89 (0.79–1.01)
Age (+10 yr)	1.45 (1.37–1.54)	0.79 (0.75–0.83)	1.36 (1.29–1.44)	0.89 (0.85–0.93)
Body mass index (+ 5 kg/m2)	0.99 (0.94–1.04)	0.94 (0.89–0.98)	0.96 (0.90–1.02)	0.99 (0.96–1.03)
Extracorporeal membrane oxygenation	1.17 (0.90–1.53)	0.45 (0.35–0.57)	1.26 (1.03–1.55)	0.77 (0.63–0.93)
Hemorrhagic stroke	7.75 (4.61–12.59)	1.39 (0.55–3.06)	4.99 (2.62–9.52)	0.48 (0.21–1.06)
Ischemic stroke	1.62 (0.60–3.63)	1.16 (0.49–2.44)	1.01 (0.43–2.40)	1.12 (0.57–2.19)

HR = hazard ratio.

Extracorporeal membrane oxygenation during course of ICU stay.