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Table 2 Association between imaging findings and real-time polymerase chain reaction (RT-PCR) results

From: Can initial chest CT scan predict status and clinical outcomes of COVID-19 infection? A retrospective cohort study

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
  1. OR odds ratio, CI confidence interval, IQR interquartile range