The Prediction Model of Risk Factors for COVID-19 Developing into Severe Illness Based on 1046 Patients with COVID-19

Table 1

Comparison of clinical symptom indices between common and severe COVID-19 patients at admission.

			Score	Degree of freedom	Significance
Step 0	Variate	Sex	0.557	1	0.456
		Age	201.977	1	<0.001
		Fever	31.379	1	<0.001
		Cough	57.544	1	<0.001
		Fatigue	16.094	1	<0.001
		Gastrointestinal symptoms	4.094	1	0.043
		Respiratory symptoms	0.353	1	0.553
		Muscle aches	1.175	1	0.278
		Headache	1.763	1	0.184
		Chest tightness	27.151	1	<0.001
		Hypertension	17.225	1	<0.001
		Chronic kidney disease	12.484	1	<0.001
		Diabetes	30.032	1	<0.001
		Coronary artery disease	1.619	1	0.203
		Cerebrovascular disease	6.948	1	0.008
		COPD	58.400	1	<0.001
		Bronchial asthma	1.242	1	0.265
		Tumor	7.906	1	0.005
		Chronic hepatitis	3.328	1	0.068
		Immune deficiency	1.918	1	0.166
		Venous thrombosis	40.036	1	<0.001
		Pneumothorax	38.952	1	<0.001
		Acute renal injury	2.850	1	0.091
		Acute liver injury	7.071	1	0.008
		Electrolyte imbalance	48.550	1	<0.001
	Total statistics		338.201	25	<0.001

COPD, chronic obstructive pulmonary disease.