Table 3 Age, total CT scores on admission and durations of hospitalization of 45 follow-up patients with coronavirus disease 2019 (COVID-19) pneumonia.

From: Temporal lung changes on thin-section CT in patients with COVID-19 pneumonia

Variable

All patients (n = 45)

Group A (n = 11)

Group B (n = 17)

Group C (n = 11)

Group D (n = 6)

P

Age—years

     

0.005

 Median (IQR)

51.0 (40.0–63.0)

41.0 (37.0–50.0)

50.0 (37.0–56.0)

63.0 (51.0–65.5)

64.5 (59.5–65.8)

 

 Mean ± SD

51.2 ± 12.1

43.6 ± 9.6

48.5 ± 11.9

56.9 ± 11.3

61.8 ± 6.2

 

Total CT score on admission—points

     

 < 0.001

 Median (IQR)

6.0 (3.0–10.0)

2.0 (1.0–4.0)

4.0 (3.0–7.0)

9.0 (7.5–13.0)

12.5 (7.8–15.8)

 

 Mean ± SD

6.7 ± 4.9

2.9 ± 2.3

5.4 ± 3.6

10.1 ± 4.5

11.2 ± 5.4

 

Duration of hospitalization—days

     

0.595

 Median (IQR)

17.0 (14.0–20.0)

15.0 (13.0–18.5)

17.0 (14.0–20.0)

18.0 (16.5–19.0)

19.0 (15.8–23.8)

 

 Mean ± SD

17.8 ± 6.1

15.7 ± 3.6

18.2 ± 7.2

17.5 ± 4.0

21.0 ± 9.1

 
  1. We categorized the 45 patients who had at least two follow-up scans into four groups: Group A, patients whose lesions reduced ≥ 75%; Group B, those whose lesions reduced 50–75%; Group C, those whose lesions reduced 25–50%; Group D, those whose lesions reduced < 25%. Continuous data were summarized as median with interquartile range (IQR) in brackets and mean ± standard deviation (SD). The Kruskal–Wallis test was applied to compare continuous variables across four groups.
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