Table 6.

Ninety-day mortality multivariable logistic regression model. Model constructed with 90-day mortality as the dependent variable. Appropriate covariates were selected and multivariable logistic regression models constructed for each covariate. 95% CI, 95% confidence interval; APACHE, Acute Physiology and Chronic Health Evaluation; IVMP, intravenous methylprednisolone.

Characteristic	Odds ratio	95% CI	P-value
Age (yr)	1.06	1.03, 1.09	<0.001
APACHE II	1.11	1.03, 1.19	0.004
$P{\mathrm{a}}_{{\mathrm{O}}_2}$/FiO2 ratio (kPa)	0.88	0.82, 0.92	<0.001
Total steroids dose without pulse	2.76	0.68, 11.4	0.156
IVMP pulse	3.03	1.48, 6.28	0.003