Table 6.

Results of Cox Regression for Survival Time Based on 152 Critical SARS Cases^*

							95% CI for Odds Ratio
Variables	β	SE	Wald	df	Significance	Odds Ratio	Lower	Upper
Steroid use	− 0.988	0.503	3.830	1	0.050	0.372	0.139	0.998
Invasive ventilation	3.739	0.775	23.278	1	0.000	42.035	9.206	191.945
Age	0.046	0.016	7.711	1	0.005	1.047	1.014	1.081

^*See Table 4 for expansion of abbreviation.