Table 2 Association between imaging findings and real-time polymerase chain reaction (RT-PCR) results
Imaging findings | RT-PCR-positive (n = 523) | RT-PCR-negative (n = 219) | OR (95% CI) | P value |
|---|---|---|---|---|
Ground glass, n (%) | ||||
No | 31 (5.9) | 34 (15.5) | 1 | |
Yes | 492 (94.1) | 185 (84.5) | 2.92 (1.74–4.88) | < 0.001 |
Consolidation, n (%) | ||||
No | 47 (9.0) | 42 (19.2) | 1 | |
Yes | 476 (91.0) | 177 (80.8) | 2.40 (1.53–3.77) | < 0.001 |
Reticular pattern, n (%) | ||||
No | 394 (75.3) | 171 (78.1) | 1 | |
Yes | 129 (24.7) | 48 (21.9) | 1.16 (0.80–1.70) | 0.423 |
Bilateral lung involvement, n (%) | ||||
No | 26 (5.0) | 10 (4.6) | 1 | |
Yes | 497 (95.0) | 209 (95.4) | 0.91 (0.43–1.93) | 0.815 |
Crazy paving, n (%) | ||||
No | 412 (78.8) | 170 (77.6) | 1 | |
Yes | 111 (21.2) | 49 (22.4) | 0.93 (0.64–1.36) | 0.728 |
Pleural effusion, n (%) | ||||
No | 481 (92.0) | 205 (93.6) | 1 | |
Yes | 42 (8.0) | 14 (6.4) | 1.27 (0.68–2.39) | 0.441 |
Lesions distribution, n (%) | ||||
Peribronchovascular | ||||
No | 348 (66.5) | 148 (67.6) | 1 | |
Yes | 175 (33.5) | 71 (32.4) | 1.05 (0.75–1.47) | 0.784 |
Peripheral | ||||
No | 19 (3.6) | 6 (2.7) | 1 | |
Yes | 504 (96.4) | 213 (97.3) | 0.74 (0.29–1.89) | 0.539 |
Number of zones involved, median (IQR) | 5 (4–5) | 4 (4–5) | 1.03 (0.88–1.22) | 0.717 |
CSS (continuous), median (IQR) | 19 (13–23) | 18 (12–21) | 1.03 (1.01–1.06) | 0.037 |
CSS ≥ 18, n (%) | ||||
No | 232 (44.4) | 115 (52.5) | 1 | |
Yes | 291 (55.6) | 104 (47.5) | 1.39 (1.01–1.90) | 0.042 |