Fibrotic HP n = 23 | IPF n = 48 | P-value | |
---|---|---|---|
Age, years | 68 (56–76) | 67 (49–77) | 0.362 |
Gender (male/female), n | 15/8 | 35/13 | 0.506 |
Smoking status (ex/never) | 12/11 | 32/16 | 0.239 |
WBC, μL | 6250 (2530–10,300) | 6365 (3400–13,500) | 0.531 |
LDH, IU/L | 232 (149–305) | 211 (139–360) | 0.428 |
CRP, mg/dL | 0.11 (0.01–1.50) | 0.14 (0.01–1.79) | 0.526 |
KL-6, U/mL | 1772 (578–8437) | 834 (286–4666) | < 0.001 |
SP-D, pg/mL | 393 (84–1111) | 222 (45–897) | 0.049 |
Pulmonary function | |||
FVC % pred | 87.1 (63.8–125.5) | 85.8 (44.9–137.1) | 0.461 |
FEV1/FVC ratio | 78.0 (65.4–96.6) | 78.3 (59.5–100.0) | 0.606 |
FEV1% pred | 87.9 (67.0–115.4) | 83.5 (52.1–129.9) | 0.363 |
DLCO % pred | 78.5 (49.9–125.1) | 76.5 (29.1–123.5) | 0.588 |
BAL fluida | |||
Total cell count, × 104/μL | 26.9 (2.6–69.1) | 24.3 (0.2–62.1) | 0.750 |
Macrophages, % | 40.5 (4.0–91.0) | 83.0 (17.0–96.0) | < 0.001 |
Lymphocytes, % | 55.2 (7.5–95.0) | 11.3 (1.6–70.0) | < 0.001 |
Neutrophils, % | 1.4 (0–10.0) | 2.0 (0–39.0) | 0.425 |
Eosinophils, % | 0.8 (0–6.0) | 2.0 (0–18.0) | 0.060 |
CD4/8 ratio | 3.9 (0.2–9.8) | 1.7 (0–8.4) | 0.005 |