Absolute mortality risk assessment of COVID-19 patients: the Khorshid COVID Cohort (KCC) study

Table 3 The multivariable subdistribution hazards model for hospital mortality

Parameter	Category	Subdistribution Hazard Ratio	CI 95%	p-value
Sex
	Female, ref	-	-	-
	Male	1.41	0.72–2.78	0.320
Age (years)
	< 45, ref	-	-	-
	45–54	0.91	0.14–6.10	0.920
	55–64	1.53	0.32–7.39	0.600
	65–74	3.49	0.70–17.56	0.130
	> 74	2.40	0.42–13.72	0.330
Oxygen Saturation (%)
	90–100, ref	-	-	-
	80–89	5.37	2.27–12.74	< 0.001
	< 80	10.94	3.90–30.66	< 0.001
CCI
	0–2, ref	-	-	-
	≥ 3	2.18	0.94–5.05	0.068
Hypertension		1.41	0.72–2.76	0.320

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