Patient characteristics and lung function data
| Age, median (range) | Male, n (%) | Chronic Pseudomonas airway infection, n (%) | CF-related diabetes, n (%) | CF liver disease, n (%) | Transplant recipient, n (%) | FEV1 % predicted prior to presenting illness, mean±SD | FEV1 % predicted following presenting illness, mean±SD | FVC % predicted prior to presenting illness, mean±SD | FVC % predicted following presenting illness, mean±SD | |
| ‘H1N1 +ve’ group (n=13) | 22 (17–48) years | 6 (46.2%) | 13 (100%) | 7 (53.8%) | 6 (46.2%) | 3 (23.1%) | 51.4±18.3% | 46.5±16.7% | 67.4±17.9% | 64.0±19.9% |
| ‘H1N1 −ve’ group (n=32) | 26 (15–59) years | 15 (46.9%) | 31 (96.9%) | 24 (75%) | 6 (18.8%) | 3 (9.4%) | 50.7±20.9% | 49.8±19.5% | 66.4±23.4% | 65.0±20.9% |
CF, cystic fibrosis; FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity.