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Table 1 Baseline information and quantitative CT characteristics

From: Quantitative CT for detecting COVID‑19 pneumonia in suspected cases

Characteristics

COVID-19 (n = 9)

Non-COVID-19 (n = 38)

p

Age, years (Median [IQR])

67.00 (19.00)

39.00 (21.50)

< 0.001 *

#Female, n (%)

5.00 (55.56)

19.00 (50.00)

1.000

Time from initial symptom onset to first CT scan, days (Median [IQR])

3.00 (4.00)

3.00 (4.50)

0.558

Infection volume (cm3), Median (IQR)

 Whole lung

208.70 (347.50)

46.20 (103.20)

0.017

 Left lung

29.50 (192.70)

15.75 (61.10)

0.417

 LUL

8.30 (71.55)

0.85 (13.13)

0.138

 LLL

21.60 (113.25)

3.95 (45.90)

0.329

 Right lung

146.60 (208.25)

6.85 (49.43)

0.003*

 RUL

15.60 (94.35)

0.20 (2.32)

0.022

 RML

2.20 (16.20)

0.20 (0.50)

0.019

 RLL

71.40 (149.30)

2.75 (31.03)

0.005*

Infection percentage (%), Median (IQR)

 Whole lung

6.40 (9.85)

1.10 (1.90)

0.016

 Left lung

1.80 (14.30)

0.75 (3.03)

0.283

 LUL

0.80 (6.65)

0.10 (1.08)

0.085

 LLL

4.00 (31.15)

0.40 (4.95)

0.167

 Right lung

5.10 (13.25)

0.35 (1.58)

0.002*

 RUL

2.10 (10.95)

0.00 (0.00)

0.005*

 RML

0.50 (5.55)

0.00 (0.00)

0.008*

 RLL

9.70 (27.10)

0.25 (2.15)

0.004*

  1. LUL  left upper lobe, LLL left lower lobe, RUL right upper lobe, RML right middle lobe, RLL right lower lobe
  2. Bold values are statistically significant (p < 0.05); *Indicate values of p < 0.01
  3. #Indicates Fisher’s Exact test; others indicate Mann–Whitney test