Table 3.

The final scoring model in the development cohort. All values presented in the table represent data collected at the time of initial COVID-19 diagnosis.

Factor			Adjusted hazard ratio (95% CI)a		P valuea		Loge value of hazard ratio		Final score
Age (years)
	<50		1 (reference)		N/Ab		0		0
	50-69		6.7 (1.09-43.93)		.047		1.831		2
	≥70		26.03 (4.26-169.8)		<.001		3.186		3
Sex
	Female		1 (reference)		N/A		N/A		N/A
	Male		1.35 (0.85-2.15)		.3		N/A		N/A
Comorbidity
	Hypertension
		No		1 (reference)		N/A		N/A	N/A
		Yes		1.21 (.75-1.94)		.48		N/A	N/A
	Diabetes
		No		1 (reference)		N/A		N/A	N/A
		Yes		1.71 (1.08-2.7)		.61		N/A	N/A
	Dementia
		No		1 (reference)		N/A		0	0
		Yes		3.92 (2.33-6.61)		<.001		1.35	1
	Chronic cardiac diseasec
		No		1 (reference)		N/A		N/A	N/A
		Yes		1.15 (.61-2.15)		.57		N/A	N/A
	Cancer in active treatment
		No		1 (reference)		N/A		N/A	N/A
		Yes		1.83 (.72-4.71)		.30		N/A	N/A
	Chronic pulmonary diseased
		No		1 (reference)		N/A		N/A	N/A
		Yes		1.76 (.857-3.625)		.25		N/A	N/A
	Chronic renal failure
		No		1 (reference)		N/A		0	0
		Yes		3.48 (1.39-8.85)		.045		1.205	1
Symptoms
	Dyspnea
		No		1 (reference)		N/A		0	0
		Yes		2.31 (1.44-3.69)		.006		.821	1
	Fatigue
		No		1 (reference)		N/A		N/A	N/A
		Yes		.69 (.3-1.57)		.38		N/A	N/A
	Mental disturbance
		No		1 (reference)		N/A		0	0
		Yes		4.04 (1.72-9.53)		.04		1.268	1
Systolic blood pressure (mmHg)
	<140		1 (reference)		N/A		N/A		N/A
	≥140		.93 (.57-1.54)		.59		N/A		N/A
Diastolic blood pressure (mmHg)
	<80		1 (reference)		N/A		N/A		N/A
	≥80		1.03 (.63-1.68)		.63		N/A		N/A
Heart rate (per min)
	<110		1 (reference)		N/A		N/A		N/A
	≥110		1.88 (.96-3.68)		.18		N/A		N/A
Body temperature (°C)
	<38		1 (reference)		N/A		N/A		N/A
	≥38		.79 (.39-1.63)		.46		N/A		N/A
Baseline hemogram
	Hemoglobin (g/dL)
		≥12.5		1 (reference)		N/A		N/A	N/A
		<12.5		1.14 (.71-1.83)		.55		N/A	N/A
	Absolute lymphocyte count (per mm3)
		≥1000		1 (reference)		N/A		0	0
		<1000		2.71 (1.66-4.43)		<.001		.982	1
	Platelet count (per mm3)
		≥100,000		1 (reference)		N/A		N/A	N/A
		<100,000		1.68 (.77-3.7)		.34		N/A	N/A

^aBased on 2000 bootstrap samples.

^bNot applicable.

^cChronic cardiac disease was a composite variable including heart failure and cardiac disease.

^dChronic pulmonary disease was a composite variable including asthma and chronic obstructive lung disease.