Table 2.

Results from regression analysis

	In-hospital mortality		ICU mortality
	OR (95% CI)	P	OR (95% CI)	P
Univariable
RDW per 1% increase	1.20 (1.16, 1.24)	< 0.0001	1.18 (1.14, 1.22)	< 0.0001
SAPS per 1-point increase	1.19 (1.15, 1.23)	< 0.0001	1.21 (1.18, 1.25)	< 0.0001
Multivariable
RDW per 1% increase	1.14 (1.08, 1.19)	< 0.0001	1.10 (1.06, 1.15)	< 0.0001
SAPS per 1-point increase	1.16 (1.13, 1.18)	< 0.0001	1.20 (1.18, 1.22)	< 0.0001

The multivariable hierarchic model is adjusted for age, gender, hematocrit, and different comorbidities (anemia, renal failure, chronic heart failure, cardiac arrhythmias, valvular disease, chronic pulmonary disease, lung embolism, pneumonia, peripheral vascular disease, hypertension, paralysis, other neurologic diseases, diabetes, hypothyroidism, liver disease, peptic ulcer, HIV, lymphoma, cancer, rheumatoid arthritis, coagulopathy, obesity, weight loss, electrolyte disturbance, alcohol abuse, drug abuse, psychosis, depression).