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Table 3 Selected chest CT image features and Scores analysis

From: CT differential diagnosis of COVID-19 and non-COVID-19 in symptomatic suspects: a practical scoring method

 

CT parameter

All patients

N = 73

RT-PCR confirmed COVID-19

N = 30

Laboratory or clinical confirmed non-COVID-19

N = 43

χ2 statistic

P-value

Positive + 1

Posterior part/lower lobe predilection

66 (90.4)

30 (100.0)

36 (83.7)

7.923

0.005*

Bilateral involvement

33 (45.2)

18 (60.0)

15 (34.9)

4.500

0.034*

Rounded GGO

9(12.3)

8 (26.7)

1 (2.3)

10.226

0.001*

Subpleural bandlike GGO

16 (21.9)

14 (46.7)

2 (4.7)

18.228

< 0.001*

Crazy-paving pattern

37 (50.7)

23 (76.7)

14 (32.6)

13.755

< 0.001*

Peripheral distribution

58 (79.5)

29 (96.7)

29 (67.4)

9.245

0.002*

GGO +/− consolidation

66 (90.4)

27 (90.0)

39 (90.7)

0.010

0.921

Negative − 1

Only one lobe involvement

34 (46.6)

9 (30.0)

25 (58.1)

5.623

0.018*

Only Central distribution (peribronchovascular)

15 (20.5)

1 (3.3)

14 (32.6)

9.245

0.002*

Tree-in-Bud sign (centrilobular nodules)

6 (8.2)

0 (0.0)

6 (14.0)

6.723

0.010*

Bronchial wall thickening

12 (16.4)

1 (3.3)

11 (25.6)

7.572

0.006*

Total Score median (IQR)

2 (1–4)

4 (2–5)

2 (0–2)

4.637

< 0.001

  1. GGO Ground glass opacification
  2. * P <0.05 was considered as statistical significant