Analysis of cell type by transmission electron microscopy
| Age (years) | n | Ciliated cells (%) | Unciliated cells (%) | Mucous cells (%) | Dead cells (%) |
|---|---|---|---|---|---|
| Results are expressed as the mean percentage (5th and 95th percentiles) for individual age groups. | |||||
| 0–6 | 16 | 69.1 (45.9, 81.0) | 21.0 (13.1, 42.3) | 9.9 (5.2, 17.5) | 0.0 (0.0, 0.0) |
| 7–12 | 13 | 62.6 (33.7, 76.0) | 26.8 (16.2, 52.9) | 10.6 (4.9, 16.4) | 0.0 (0.0, 0.0) |
| 13–18 | 10 | 71.3 (59.6, 79.1) | 20.6 (13.6, 32.2) | 8.1 (5.7, 10.4) | 0.0 (0.0, 0.0) |
| ≥19 | 15 | 67.5 (43.0, 78.6) | 22.1 (12.4, 43.1) | 10.4 (6.4, 19.7) | 0.0 (0.0, 0.0) |