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Table 2 Results of diagnostic tests in critically ill patients with Aspergillus-positive culture in respiratory tract samples (PAC group) and only positive galactomannan without Aspergillus growth in the BALF (OPG group)

From: Does galactomannan testing increase diagnostic accuracy for IPA in the ICU? A prospective observational study

 

All patients

PAC group

OGP group

P value

Variable

(n = 85)

(n = 43)

(n = 42)

 

Galactomannan

 Galactomannan test in BALF, positive, n (%)

77 (90.6)

35 (81.4)

42 (100)

0.049

 Galactomannan test in BALF, titre EIA (IQR)

3.4 (1.0–6.3)

5.9 (3.2–7.0)

1.7 (0.9–4.5)

<0.001

 Galactomannan test in serum, positive, n (%)

16 (18.8)

11 (25.6)

5 (11.9)

0.096

 Galactomannan test in serum, titre EIA (IQR)

1.9 (1.0–3.8)

2.3 (1.2–5.0)

1.0 (0.7–3.1)

0.181

Aspergillus-PCR in BALF

 Performed, n

47

24

23

 

 Positive, n (%)

19 (40.4)

15 (62.5)

4 (17.3)

0.002

Bronchoscopy

 Aspergillus tracheobronchitis, n (%)

8 (9.4)

7 (16.3)

1 (2.4)

0.058

CT scan

 Performed, n

81

40

41

 

 Nodular infiltrate(s), n (%)

23 (28.4)

12 (30.0)

11 (26.8)

0.752

 Halo sign, n (%)

11 (13.6)

4 (10.0)

7 (17.1)

0.519

 Wedge-shaped pleura associated consolidations, n (%)

16 (19.8)

7 (17.5)

9 (22.0)

0.615

 Focal ground-glass opacities (%)

26 (32.1)

13 (32.5)

13 (31.7)

0.939

 Caverns/air-crescent sign, n (%)

8 (9.9)

6 (15.0)

2 (4.9)

0.155

 Tree-in-bud pattern/centrilobular nodules, n (%)

14 (17.3)

5 (12.5)

9 (22.0)

0.379

 Peribronchial consolidations, n (%)

46 (56.8)

21 (52.5)

25 (61.0)

0.441

 Diffuse ground-glass opacities, n (%)

17 (21.0)

9 (22.5)

8 (19.5)

0.741

 Lesions typical of invasive aspergillosis on CT scan, n (%)

30 (37.0)

15 (37.5)

15 (36.6)

0.932

  1. EIA enzyme immunosassay, BALF bronchoalveolar lavage fluid, CT computed tomography, IQR interquantile range
  2. P values ≤0.05 are presented in bold