Table 2.

Comorbidities prevalence and age-adjusted odds ratios among study patients at admission and comparison between disease groups.

	COVID-19*		Influenza		SARI		Others		Age-adjusted odds ratio (95%CI)	FDR-corrected p-value
	(n = 398)		(n = 1,612)		(n = 2,292)		(n = 4,054)		(COVID-19 vs. influenza/SARI)	(odds ratio)
Any comorbidity	264	(66.3%)	1,316	(81.6%)	1,877	(81.9%)	2,766	(68.2%)	0.32 (0.24; 0.44)	8.32E-12
Smoking	35	(8.8%)	341	(21.2%)	458	(20.0%)	529	(13.0%)	0.32 (0.22; 0.48)	2.05E-07
Cardiovascular disease	207	(52.0%)	1,037	(64.3%)	1,420	(62.0%)	2,169	(53.5%)	0.46 (0.34; 0.61)	9.26E-07
Any cancer	38	(9.5%)	276	(17.1%)	536	(23.4%)	731	(18.0%)	0.4 (0.27; 0.58)	1.11E-05
Chronic obstructive pulmonary disease (COPD)	14	(3.5%)	166	(10.3%)	267	(11.6%)	185	(4.6%)	0.29 (0.16; 0.53)	0.0002
Dementia	40	(10.1%)	79	(4.9%)	188	(8.2%)	224	(5.5%)	2.82 (1.67; 4.76)	0.0003
Solid cancer	34	(8.5%)	234	(14.5%)	415	(18.1%)	631	(15.6%)	0.5 (0.33; 0.75)	0.0019
Hematologic cancer	4	(1.0%)	51	(3.2%)	140	(6.1%)	123	(3.0%)	0.19 (0.07; 0.53)	0.0028
Hypertension	166	(41.7%)	848	(52.6%)	1,091	(47.6%)	1,699	(41.9%)	0.66 (0.5; 0.87)	0.0064
Ischemic heart disease	57	(14.3%)	358	(22.2%)	452	(19.7%)	664	(16.4%)	0.69 (0.49; 0.97)	0.0583
Asthma and bronchiectasis	14	(3.5%)	114	(7.1%)	110	(4.8%)	114	(2.8%)	0.54 (0.28; 1.03)	0.0963
Diabetes	117	(29.4%)	542	(33.6%)	701	(30.6%)	1,031	(25.4%)	0.78 (0.59; 1.03)	0.1159
Stroke	30	(7.5%)	152	(9.4%)	244	(10.6%)	505	(12.5%)	0.7 (0.42; 1.16)	0.2162
Hyperlipidemia	146	(36.7%)	671	(41.6%)	868	(37.9%)	1,305	(32.2%)	0.87 (0.67; 1.14)	0.3333
Osteoarthritis	6	(1.5%)	27	(1.7%)	19	(0.8%)	77	(1.9%)	0.46 (0.1; 2.02)	0.3333
Rheumatoid arthritis	2	(0.5%)	29	(1.8%)	35	(1.5%)	41	(1.0%)	0.34 (0.04; 2.61)	0.3333
Chronic kidney disease (CKD)	51	(12.8%)	256	(15.9%)	281	(12.3%)	464	(11.4%)	0.92 (0.63; 1.34)	0.6721

^*Excluding mild severity cases.