Comparison of BAL performed with a paediatric (PB) and a traditional adult bronchoscope (AB)
| PB (n=39) | AB (n=14) | P value | |
| FEV1 (%) | 88 | 85 | >0.99 |
| BAL return (%) | 46 | 36 | <0.01 |
| ELF (mL) | 1.1 | 0.43 | <0.01 |
| Protein (μg/mL) | 102 | 101 | 0.94 |
| Total cell count (×106) | 7.0 | 3.8 | 0.02 |
| Macrophages (%) | 94.9 | 91.5 | 0.02 |
| Neutrophils (%) | 1.2 | 4.3 | 0.02 |
| SLPI (uncorrected nM) | 4.3 | 7.9 | 0.09 |
| SLPI (μg/mg protein) | 0.44 | 0.85 | 0.04 |
| SLPI (ELF nM) | 396 | 1598 | <0.01 |
| Surfactant D (uncorrected nM) | 3.9 | 3.0 | 0.22 |
| Surfactant D (μg/mg protein) | 1.2 | 0.72 | 0.01 |
| Surfactant D (ELF nM) | 401 | 782 | 0.16 |
Comparison of BAL performed with a PB and a traditional AB.
Data are presented as median. Comparisons made using Mann-Whitney test.
ELF, epithelial lining fluid volume; FEV1 (%), forced expiratory volume in 1 s (% predicted); SLPI, secretory leucocyte protease inhibitor.