Table 2.

Adjusted hazard ratios (multivariate) of the 23 Predictors, calculated based on 28 days Mortality in validation Cohorts.

	Hazard ratio	Confidence interval	z	p value
Age > 60 years	2.31	1.52–3.53	3.9	< 0.005
Gender (male)	1.72	1.06–2.85	− 2.2	0.03
Fever	0.28	0.16–0.46	− 4.85	< 0.005
Cough	1.02	0.7–1.47	0.09	0.82
Respiratory distress	1.01	0.62–1.53	0.02	0.84
Weakness	1.69	0.91–2.94	− 1.91	0.05
Diabetes	1.21	0.83–1.77	1	0.14
Hypertension	1.04	0.7–1.55	− 0.16	0.83
Chronic kidney disease	3.04	1.72–5.38	3.88	< 0.005
Chronic liver disease	3.95	1.16–13.42	2.2	0.02
Heart disease	1.56	0.91–2.69	1.61	0.11
ROR	1.54	1.03–2.3	2.03	0.04
Oxygen saturation (SpO2)	2.84	1.87–4.3	2.11	< 0.005
WBC count	1	1	4.9	0.91
Lymphocytes %	1.99	1.23–3.2	− 1.95	< 0.005
INR (prothrombin time)	0.96	0.82–1.13	2.83	0.64
Creatinine	0.82	0.78–0.87	− 0.47	< 0.005
Albumin	1.36	1.03–1.78	− 7.46	0.03
AST (liver enzyme)	1.11	0.89–1.33	1.86	0.01
Lactate dehydrogenase	4.02	2.66–6.07	2.54	< 0.005
Ferritin	2.48	1.32–4.74	6.61	< 0.005
C-reactive protein	1.65	1.11–2.46	− 2.95	0.01
Red cell distribution width	1.03	0.95–1.12	2.45	0.53