Table 1.

Demographic and clinical characteristics of pneumonia patients according to presence or absence of SARS-CoV-2 infection.

Variables	Patients with SARS-CoV-2 infection (n = 10,470)	Patients without SARS-CoV-2 infection (n = 10,470)	p-value
Demographics
Age (years)
<35	728 (6.8%)	728 (6.8%)	1.00
35–54	2333 (21.8%)	2335 (21.8%)	1.00
55–70	3857 (36.0%)	3805 (35.6%)	0.46
>70	3771 (35.3%)	3823 (35.8%)	0.46
Sex
Men	4918 (46.0%)	4918 (46.0%)	1.00
Women	5773 (54.0%)	5773 (54.0%)	1.00
Race/ethnicity
White	7575 (70.9%)	7575 (70.9%)	1.00
Black	1266 (11.8%)	1266 (11.8%)	1.00
Hispanic	765 (7.2%)	765 (7.2%)	1.00
Asian	56 (0.5%)	56 (0.5%)	1.00
Other	1029 (9.6%)	1029 (9.6%)	1.00
Cardiovascular risk factors/diseases
Hypertension	8302 (77.7%)	8127 (76.0%)	0.004
Diabetes mellitus	5666 (53.0%)	4655 (43.5%)	<0.001
Hyperlipidemia	6850 (64.0%)	6268 (58.3%)	<0.001
Nicotine dependence/tobacco use	2027 (19.0%)	4077 (38.1%)	<0.001
Alcohol use or abuse	661 (6.2%)	1394 (13.0%)	<0.001
Atrial fibrillation	2199 (20.6%)	2846 (26.6%)	<0.001
Congestive heart failure	2708 (25.3%)	4083 (38.2%)	<0.001
Previous acute myocardial infarction	727 (6.8%)	919 (8.9%)	<0.001
Previous ischemic stroke	500 (4.7%)	601 (5.6%)	0.002
Previous intracerebral hemorrhage	56 (0.5%)	74 (0.7%)	0.11
Previous subarachnoid hemorrhage	30 (0.3%)	36 (0.3%)	0.46
Previous unstable angina	110 (1.0%)	122 (1.1%)	0.43
Events during reference hospitalization
Respiratory failure	7219 (67.5%)	4996 (46.7%)	<0.001
Dyspnea	3752 (35.1%)	3405 (31.8%)	<0.001
Chest pain	970 (9.1%)	1375 (12.9%)	<0.001
Septic shock	559 (5.2%)	670 (6.3%)	0.001
Intubation/mechanical ventilation	683 (6.4%)	633 (5.9%)	0.15
Non-routine discharge (excluding death)	8295 (77.6%)	8656 (81.0%)	<0.0001
Expired in hospital	293 (2.7%)	468 (4.4%)	<0.0001

SARS-CoV-2: severe acute respiratory syndrome coronavirus 2.