Table 1.
Patient baseline characteristics
| Stage 1: sputum induction | Stage 2: bronchoalveolar lavage | |
|---|---|---|
| Number of patients recruited | 124 | 35 |
| Number of procedures | 200 | 41 |
| Median age at procedure | 8·2 years (4·9–12·6) | 8·5 years (6·5–12·6) |
| Number of procedures in children aged <6 years | 72 (36%) | .. |
| Median age (subgroup <6 years) | 3·5 years (1·6–4·9) | .. |
| Number of procedures in children aged ≥6 years | 128 (64%) | .. |
| Median age (subgroup ≥6 years) | 11·1 years (8·2–14·3) | .. |
| Pseudomonas aeruginosa positive (isolated in preceding 12 months) | 24 (12%) | 6 (15%) |
| Median FEV1 (where applicable) | 89% (76–99) | 84% (72–94) |
| Hypertonic saline naive | 37 (19%) | 3 (7%) |
| Wet cough at time of procedure | 66 (33%) | 14 (34%) |
| Able to spontaneously expectorate before procedure | 22 (11%) | 2 (5%) |
| Symptomatic at time of procedure | 128 (64%) | 32 (82%) |
| Inpatient procedure | 80 (40%) | 41 (100%) |
| Outpatient procedure | 120 (60%) | 0 |
Data are n (%) or median (IQR). Denominators for percentages are number of procedures.