Table 1.
Demographics and characteristics of patients testing positive for SARS-CoV-2 who underwent chest imaging.
| All patients (n = 976) |
Complications (n = 197) |
No complications (n = 779) |
P-value | |
|---|---|---|---|---|
| Age, mean ± SD | 61.2 ± 17.1 | 66.1 ± 14.7 | 59.9 ± 17.5 | <0.0001 |
| Male, n (%) | 606 (62%) | 131 (67%) | 475 (61%) | 0.16 |
| BMI, kg/m2, mean ± SD | 28.4 ± 6.8 n = 923 |
29.5 ± 6.2 n = 727 |
28.4 ± 7.0 n = 196 |
0.76 |
| Prior medical historya | ||||
| Smoking history, n (%) | 239 (24%) | 62 (31%) | 177 (23%) | 0.01 |
| Asthma, n (%) | 93 (10%) | 19 (10%) | 74 (9%) | 1.00 |
| COPD, n (%) | 44 (5%) | 13 (7%) | 31 (4%) | 0.12 |
| ILD, n (%) | 5 (0.5%) | 2 (1%) | 3 (0.4%) | 0.27 |
| Hypertension, n (%) | 528 (55%) n = 968 |
134 (69%) | 394 (51%) | <0.0001 |
| CAD, n (%) | 143 (15%) n = 967 |
45 (23%) n = 194 |
98 (13%) n = 773 |
0.0004 |
| Heart failure, n (%) | 65 (7%) n = 966 |
25 (13%) n = 192 |
40 (5%) n = 774 |
0.0003 |
| Presenting vital signs | ||||
| Temperature (°C), mean ± SD | 37.4 ± 0.9 n = 959 |
37.5 ± 0.9 n = 196 |
37.4 ± 0.9 n = 767 |
0.49 |
| Heart rate (bpm), mean ± SD | 95.4 ± 18.5 n = 965 |
96.5 ± 19.2 n = 192 |
95.2 ± 18.3 n = 770 |
0.37 |
| Systolic BP, mean ± SD | 129.7 ± 21.7 n = 964 |
130.8 ± 23.1 n = 195 |
129.5 ± 21.4 n = 769 |
0.43 |
| Diastolic BP, mean ± SD | 77.3 ± 12.9 n = 964 |
75.8 ± 13.5 n = 195 |
77.7 ± 12.7 n = 769 |
0.08 |
| Respiratory rate, mean ± SD | 20.4 ± 5.3 n = 958 |
21.9 ± 6.3 n = 194 |
20.0 ± 5.0 n = 764 |
0.0001 |
| No. of chest imaging | ||||
| All chest radiograph, n (%) | 976 (100%) | 197 (20%) | 779 (80%) | – |
| Chest radiograph portable, n (%) | 968 (99%) | 197 (100%) | 771 (99%) | 0.37 |
| Chest radiograph PA/lateral, n (%) | 24 (2%) | 6 (3%) | 18 (2%) | 0.61 |
| All cardiothoracic CT, n (%) | 88 (9%) | 45 (23%) | 43 (6%) | <0.0001 |
| Chest CT without contrast, n (%) | 32 (3%) | 21 (11%) | 11 (1%) | <0.0001 |
| Chest CT with contrast, n (%) | 34 (3%) | 16 (8%) | 18 (2%) | 0.0003 |
| Chest CT PE, n (%) | 33 (3%) | 18 (9%) | 15 (2%) | <0.0001 |
| Chest CT angiography, n (%) | 2 (0.22%) | 2 (1%) | 0 (0%) | 0.04 |
| Initial CXR severity score | <0.0001 | |||
| 0 | 191 (20%) | 18 (9%) | 173 (22%) | |
| 1 | 85 (9%) | 12 (6%) | 73 (9%) | |
| 2 | 132 (14%) | 25 (13%) | 107 (14%) | |
| 3 | 109 (11%) | 21 (11%) | 88 (11%) | |
| 4 | 259 (27%) | 58 (29%) | 201 (26%) | |
| 5 | 86 (9%) | 24 (12%) | 62 (8%) | |
| 6 | 114 (12%) | 39 (20%) | 75 (10%) |
Abbreviations: BMI, Body Mass Index; CT, Computed Tomography; bpm, Beats Per Minute; BP, Blood Pressure; COPD, Chronic Obstructive Pulmonary Disease; ILD, Interstitial Lung Disease; CAD, Coronary Artery Disease; CXR, chest x-ray.
a
Medical history was determined based on clinical notes in the electronic medical records.