Table II.

Clinical variables for adult patients with COVID-19, n = 100

Oxygen saturation on room air in ED	91% (88%, 94%)
Respiratory support on admission
None required	18 (18)
Nasal cannula	56 (56)
Non-rebreather mask	22 (22)
Intubated immediately	4 (4)
Maximum respiratory support
None required	12 (12)
Nasal cannula	46 (46)
Non-rebreather mask	26 (26)
High-flow nasal cannula	3 (3)
Mechanical ventilation	13 (13)
Age-adjusted Charlson comorbidity index∗
0	66 (66)
1	23 (23)
2	5 (5)
3	4 (4)
4	2 (2)
Number of comorbidities, including obesity, lung disease, cardiac disease, diabetes, or hypertension
0	31 (31)
1	25 (25)
2	26 (26)
3	10 (10)
4	8 (8)
History of lung disease	19 (19)
History of cardiac disease	9 (9)
History of diabetes	26 (26)
History of obesity	48 (48)
History of hypertension	37 (37)
Maximum C-reactive protein, mg/dL	14.6 (8.5, 23.2)
Need for dialysis	5 (5)
Intubated on unit	13 (13)

Values are median (IQR) or n (%).

^∗Age-adjusted Charlson comorbidity index.⁷