Table 1.

General characteristics of study participants according to COVID-19 status.

Variables		Total	With COVID-19		Without COVID-19		p-value
			N	%	N	%
Total		129,120	8070	6.3	121,050	93.8
Men		51,776	3236	40.1	48,540	40.1	1.000
Age group (years)							1.000
0–9		1296	81	1.0	1215	1.0
10–19		4416	276	3.4	4140	3.4
20–29		32,912	2057	25.5	30,855	25.5
30–39		13,312	832	10.3	12,480	10.3
40–49		16,576	1036	12.8	15,540	12.8
50–59		25,072	1567	19.4	23,505	19.4
60–69		19,184	1199	14.9	17,985	14.9
70≤		16,352	1022	12.7	15,330	12.7
Residential area							1.000
Daegu and Gyeongbuk		84,224	5264	65.2	78,960	65.2
Other regions		44,896	2806	34.8	42,090	34.8
Household income							<0.001
First quantile (lowest)		31,769	2401	29.8	29,368	24.3
Second quantile		19,140	1101	13.6	18,039	14.9
Third quantile		21,829	1311	16.2	20,518	17.0
Fourth quantile		24,289	1348	16.7	22,941	19.0
Fifth quantile (highest)		32,093	1909	23.7	30,184	24.9
Disability status							<0.001
Yes		7261	619	7.7	6642	5.5
No		121,859	7451	92.3	114,408	94.5
Comorbidities
Diabetes mellitus		17,288	1185	14.7	16,103	13.3	<0.001
Hypertension		26,716	1662	20.6	25,054	20.7	0.826
Dyslipidemia		35,702	2268	28.1	33,434	27.6	0.347
Ischemic heart disease		5818	399	4.9	5419	4.5	0.050
Stroke		3525	266	3.3	3259	2.7	0.001
Chronic obstructive pulmonary disease		1717	136	1.7	1581	1.3	0.004
Chronic kidney disease		1467	80	1.0	1387	1.1	0.205
Cancer		5764	361	4.5	5403	4.5	0.967
Asthma		14,258	953	11.8	13,305	11.0	0.023
Mental illness		26,176	1928	23.9	24,248	20.0	<0.001
Chronic liver disease		23,054	1500	18.6	21,554	17.8	0.076

Abbreviations: COVID-19, coronavirus disease.