Table 2.

Stepwise generalized linear regression model for in-hospital mortality (AIC=91.36). The only two correlated variables are the presence of chronic kidney disease (OR 0.04, p=0.001) and oxygen arterial saturation (OR 0.73, p=0.032).

	Estimate	Std. Error	z value	P-value
(Intercept)	ns	ns	ns	0.996
Sex (female)	ns	ns	ns	0.055
30-day mortality	ns	ns	ns	0.993
NIV	ns	ns	ns	0.997
Invasive ventilation	ns	ns	ns	0.999
Readmission	ns	ns	ns	0.998
CKD	−3.130	0.959	−3.263	0.001
Liver disease	ns	ns	ns	0.997
COPD	ns	ns	ns	0.997
PaO2	ns	ns	ns	0.207
SaO2	−0.321	0.155	−2.072	0.038
PaO2/FiO2	ns	ns	ns	0.153
HR	ns	ns	ns	0.056
ROX	ns	ns	ns	0.080

Note: NIV: non-invasive ventilation.