Additional interventions
| High flow (n=53)* | Low flow (n=52) | |
| Any extra treatment | 17 (30.9) | 22 (42.3) |
| Antibiotics | 5 (14.5) | 5 (9.6) |
| Bronchodilators | 6 (10.9) | 5 (9.6) |
| NSAIDs | 9 (16.4) | 16 (30.8) |
| Prednisolone | 2 (3.6) | 0 (0) |
N (%).
*Data missing in two patients.
NSAID, non-steroidal anti-inflammatory drug.