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. 2021 Jun 19;25(2):185–197. doi: 10.1007/s40477-021-00600-z

Table 2.

Diagnostic/laboratory investigations

Diagnostic/laboratory investigations Bacterial infection
n = 67
Viral infection
n = 76
Atypical infection
n = 43
p value
Performed chest X-ray (CXR) 64(95.52) 63 (84) 33 (76.74)

B-V: 0.026

V-A:0.330

B-A:0.003

Consolidation (CXR) 58 (90.63) 49 (77.78) 27 (81.82)

B-V: 0.047

V-A: 0.643

B-A:0.212

Atelectasis (CXR) 12 (18.75) 12 (19.05) 3(9.09)

B-V: 0.9

V-A:0.164

B-A:0.172

Pleural effusion (CXR) 39 (60.94) 15 (23.81) 9 (27.27)

B-V: < 0.001

V-A:0.710

B-A:0.002

CRP < 50 mg/L 24 (40.68) 52 (85.25) 15 (65.22)

B-V: < 0.001

V-A: 0.042

B-A: 0.046

CRP 50–100 mg/L 12 (20.34) 3 (4.92) 3 (13.04)

B-V:0.01

V-A: 0.202

B-A:0.336

CRP > 100 mg/L 23 (38.98) 6 (9.84) 5 (21.74)

B-V: < 0.001

V-A:0.141

B-A:0.139

WBC count:

 < 10,000/µL

23 (41.07) 23 (42.59) 9 (37.50)

B-V:0.872

V-A: 0.673

B-A:0.766

WBC count:

10,000–15,000/µL

15 (26.79) 18 (33.33) 8 (33.33)

B-V:0.454

V-A:1

B-A:0.553

WBC count:

 > 15,000/µL

18 (32.14) 13 (24.07) 7 (29.17)

B-V: 0.347

V-A:0.635

B-A:0.792