Table 2 Respiratory findings according to R value

BAL’s data

 Total cell count (× 10³/ml) [median (IQR)]

160 (100–250)

145 (97–235)

160 (100–275)

0.471

 Cell population % mean (SD)

  Lymphocytes

24.5 (15.9)

28.4 (15.7)

20.8 (15.5)

0.071

  Macrophages

69 (5.2)

66.3 (14.8)

71.7 (15.3)

0.184

  Eosinophils

0.6 (1.8)

0.7 (1.8)

0.6 (1.7)

0.732

  Neutrophils

5.2 (7.1)

4.7 (8.1)

5.7 (6.0)

0.599

 CD4/CD8 ratio [median (IQR)]

3.45 (1.88–7.26)

6.84 (4.78–11.32)

1.91 (1.28–2.81)

 < 0.001

PFTs data

n = 59

n = 31

n = 28

 FEV-1 (L) [median (IQR)]

2.94 (2.34–3.56)

3.07 (2.57–3.74)

2.75 (1.84–3.42)

0.069

 FVC (L) [median (IQR)]

3.8 (2.92–4.48)

3.89 (3.24–5.01)

3.53 (2.47–4.15)

0.092

 DLCO (%) [median (IQR)]

76 (66–87)

81 (70–86)

68 (60–88)

0.057

CT-scan review [median (IQR)]**

n = 29

n = 13

n = 16

 Micronodular involvement [n (%)]

  Sparce

13 (44.8)

5 (38.5)

8 (50.0)

0.534

  Profuse

7 (24.1)

3 (23.1)

4 (25.0)

1.000^§

  Consolidation/conglomeration

9 (31.0)

5 (38.5)

4 (25.0)

0.688^§

 Traction bronchiectasis [n (%)]

1 (3.4)

0 (0)

1 (6.3)

1.000^§