Table 3

Predictive model for 30-day mortality at presentation in hospitalised patients with COVID-19

Predictor variable	Coefficient	SE	OR (95% CI)	p>z
Age				<0.001
40–49 years	0.082	0.446	1.09 (0.45 to 2.6)
50–54 years	0.471	0.448	1.60 (0.67 to 3.86)
55–59 years	1.058	0.412	2.88 (1.28 to 6.46)
60–64 years	1.228	0.394	3.42 (1.58 to 7.4)
65–69 years	1.655	0.381	5.23 (2.48 to 11.04)
70–74 years	1.772	0.372	5.88 (2.84 to 12.21)
75–79 years	2.268	0.373	9.66 (4.65 to 20.07)
80–84 years	2.695	0.377	14.8 (7.08 to 30.96)
85–89 years	2.803	0.379	16.49 (7.84 to 34.67)
>90 years	3.103	0.397	22.26 (10.22 to 48.48)
Low age adjusted SaO₂	0.875	0.102	2.40 (1.97 to 2.93)	<0.001
Neutrophil-to-lymphocyte ratio				<0.001
3.22–6.33	0.173	0.123	1.19 (0.93 to 1.51)
>6.33	0.657	0.119	1.93 (1.53 to 2.44)
eGFR (CKD-EPI)				<0.001
30–59 mL/min/1.73 m²	0.498	0.109	1.65 (1.33 to 2.04)
<30 mL/min/1.73 m²	1.093	0.176	2.98 (2.11 to 4.21)
Dyspnoea	0.414	0.097	1.51 (1.25 to 1.83)	<0.001
Male sex	0.466	0.098	1.59 (1.31 to 1.93)	<0.001
Intercept	−4.266	0.360

CKD-PI, Chronic Kidney Disease Epidemiology Collaboration equation; eGFR, estimated glomerular filtration rate calculated by the CKD-EPI; SaO2, oxygen saturation.