Table 2.
Association between typical findings and COVID-19 pneumonia diagnosis.
| COVID-19 Diagnosis |
||||||
|---|---|---|---|---|---|---|
| CT findings | Patients (n = 159) No. (%) | Yes (n = 86) No. (%) |
No (n = 73) No. (%) |
P-value | Sensitivity % (95% CI) |
Specificity % (95% CI) |
| Multifocal GGO | 107 (67.3) |
82 (95.3) |
25 (34.2) |
<.001 | 95.3 (88.5−98.7) |
65.7 (53.7−76.4) |
| Rounded GGO | 82 (51.6) |
71 (82.6) |
11 (15.1) |
<.001 | 82.5 (72.8−89.9) |
84.9 (74.6−92.2) |
| GGO + consolidation | 72 (45.3) |
47 (54.7) |
25 (34.2) |
.01 | 54.6 (43.5−65.4) |
65.7 (53.7−76.4) |
| Crazy-paving pattern | 75 (47.2) |
60 (69.8) |
15 (20.5) |
<.001 | 69.7 (58.9−79.2) |
79.4 (68.3−88.0) |
| Perilobular patterna | 58 (36.5) |
56 (65.1) |
2 (2.7) |
<.001 | 65.1 (54.0−75.0) |
97.2 (90.4−99.6) |
| Reversed halo signa | 28 (17.6) |
27 (31.4) |
1 (1.4) |
<.001 | 31.4 (21.8−42.3) |
98.6 (92.6−99.9) |
| Subpleural linesa | 58 (36.5) |
49 (57.0) |
9 (12.3) |
<.001 | 56.9 (45.8−67.6) |
87.6 (77.8−94.2) |
| Fibro retractile opacitya | 54 (34.0) |
43 (50.0) |
11 (15.1) |
<.001 | 50.0 (39.0−60.9) |
84.9 (74.6−92.2) |
| Bilateral | 105 (66.0) |
81 (94.2) |
24 (32.9) |
<.001 | 97.6 (91.5−99.7) |
42.9 (27.7−59.0) |
| Lower predominance | 64 (40.5) |
42 (49.4) |
22 (30.1) |
.11 | 51.8 (40.4−63.1) |
43.5 (27.8−60.3) |
| Peripheral (any finding) | 84 (52.8) |
67 (77.9) |
17 (23.3) |
<.001 | 81.7 (71.6−89.3) |
52.7 (35.4−69.5) |
Abbreviations: COVID-19, coronavirus disease 2019; CT, computed tomography; CI, confidence interval; GGO, ground-glass opacities.
a
Considered as other findings of organizing pneumonia seen later in the disease.