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Table 4 LUS Findings of COVID-19 Patients With and Without Adverse Events

From: Prognostic value of bedside lung ultrasound score in patients with COVID-19

Variables

All patients (n = 280)

Non-event (n = 243)

Event (n = 37)

p value

LUS features

    

 Pleural line, n (%)

    

  Normal pleural line

181 (64.6)

180 (74.1)

1 (2.7)

 < 0.001

  Irregular pleural line

99 (35.4)

63 (25.9)

36 (97.3)

 < 0.001

  Blurred pleural line

31 (11.1)

6 (2.5)

25 (67.6)

 < 0.001

 B-lines, n (%)

    

  Well-spaced B-lines < 3

250 (89.3)

236 (97.1)

14 (37.8)

 < 0.001

  Well-spaced B-lines ≥ 3

176 (62.9)

139 (57.2)

37 (100.0)

 < 0.001

  Multiple coalescent B-lines

34 (12.1)

8 (3.3)

26 (70.3)

 < 0.001

Consolidation, n (%)

46 (16.4)

22 (9.1)

24 (64.9)

 < 0.001

Pleural effusion, n (%)

5 (1.8)

3 (1.2)

2 (5.4)

0.131

Distribution of abnormal LUS features

    

 Irregular pleural line

    

  Anterior fields

55 (19.6)

25 (10.3)

30 (81.1)

 < 0.001

  Lateral fields

50 (17.9)

24 (9.9)

26 (70.3)

 < 0.001

  Posterior fields

76 (27.1)

49 (20.2)

27 (73.0)

 < 0.001

  No. of involved zones

0 [0 ~ 2]

0 [0 ~ 1]

7 [4 ~ 10]

 < 0.001

 Blurred pleural line

    

  Anterior fields

4 (1.4)

1 (0.4)

3 (8.1)

0.008

  Lateral fields

16 (5.7)

3 (1.2)

13 (35.1)

 < 0.001

  Posterior fields

28 (10.0)

6 (2.5)

22 (59.5)

 < 0.001

  No. of involved zones

0 [0 ~ 0]

0 [0 ~ 0]

2 [0 ~ 3]

 < 0.001

 Well-spaced B-lines ≥ 3

    

  Anterior fields

100 (35.7)

63 (25.9)

37 (100.0)

 < 0.001

  Lateral fields

109 (38.9)

74 (30.5)

35 (94.6)

 < 0.001

  Posterior fields

139 (49.6)

103 (42.4)

36 (97.3)

 < 0.001

  No. of involved zones

1 [0 ~ 4]

1 [0 ~ 2]

10 [6 ~ 10]

 < 0.001

 Multiple coalescent B-lines

    

  Anterior fields

33 (11.8)

7 (2.9)

26 (70.3)

 < 0.001

  Lateral fields

32 (11.4)

7 (2.9)

25 (67.6)

 < 0.001

  Posterior fields

34 (12.1)

8 (3.3)

26 (70.3)

 < 0.001

  No. of involved zones

0 [0 ~ 0]

0 [0 ~ 0]

2 [0 ~ 3]

 < 0.001

 Consolidation

    

  Anterior fields

17 (6.1)

5 (2.1)

12 (32.4)

 < 0.001

  Lateral fields

25 (8.9)

10 (4.1)

15 (40.5)

 < 0.001

  Posterior fields

41 (14.6)

19 (7.8)

22 (59.5)

 < 0.001

  No. of involved zones

0 [0 ~ 0]

0 [0 ~ 0]

2 [0 ~ 5]

 < 0.001

Left lung involved, n (%)

139 (49.6)

103 (42.4)

36 (97.3)

 < 0.001

Right lung involved, n (%)

140 (50.0)

103 (42.4)

37 (100.0)

 < 0.001

Bilateral involved, n (%)

103 (36.8)

67 (27.6)

36 (97.3)

 < 0.001

LUS score

1 [0 ~ 6]

1 [0 ~ 3]

32 [21 ~ 49]

 < 0.001

  1. Data are n (%) or median [ IQR]. p values comparing patients with COVID-19 in different groups and normal control participants are from χ [2] test, or Mann–Whitney U test. p < 0.05 was considered statistically significant; LUS, lung ultrasonography; COVID-19, coronavirus disease 2019
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Critical Care

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