Median (range) protein concentrations in BAL fluid
| Normal children (n = 39) | Children with pneumonia (n = 16) | Normal adults (n = 16) | Adults with pneumonia (n = 15) | |
|---|---|---|---|---|
| Albumin (mg/l) | 16 (0.5–70) | 175 (8.8–1867) | 9.7 (3.8–24) | 53 (2.6–119)4-150 |
| α1-antitrypsin (mg/l) | 1.05 (0.03–5.7) | 29 (2.7–269) | 0.18 (0.01–0.98) | 5.3 (0.2–53)4-150 |
| α2-macroglobulin (mg/l) | 0.15 (0–3.8) | 10.2 (0.2–134) | 04-151 | 1.1 (0.01–21)4-150 |
| Myeloperoxidase (mg/l) | 0 (0–161) | 782 (106–13 000) | 23.5 (1–51) | 781 (9–14 100) |
| Elastase (mg/l) | 0 (0–21) | 36 (7–1340) | 2.1 (1–14) | 71 (0.1–3190) |
| Lactoferrin (mg/l) | 27 (2.1–288) | 617 (82–5328) | 31 (10–84) | 652 (8–2946) |
| Fibronectin (mg/l) | 0.1 (0.01–0.37) | 1.33 (0.23–11) | 0.08 (0.02–0.2) | 0.72 (0.08–8.2) |