Pre-intervention characteristics by randomisation group
| Exercise group | Diet group | Combined group | Control group | |
| Patients | 18 | 17 | 15 | 10 |
| Females | 7 (38.9%) | 11 (64.7%) | 11 (73.3%) | 3 (30%) |
| Age years | 41.1±12.7 | 44.1±14.8 | 47.9±10.5 | 41.0±12.8 |
| BMI kg·m−2 | 24.6±2.1 | 24.1±2.6 | 25.7±2.6 | 25.0±1.9 |
| FEV1 % predicted | 88.6±11.8 | 88.1±16.8 | 84.1±13.4 | 89.4±16.0 |
| Smoking | ||||
| Former | 5 (27.7%) | 4 (23.5%) | 6 (40%) | 3 (30%) |
| Never | 12 (66.6%) | 13 (76.4%) | 9 (60%) | 7 (70%) |
| Atopy | 14 (77.7%) | 10 (66.6%) | 10 (76.9%) | 7 (77.7%) |
Data are presented as mean±sd unless otherwise stated. BMI: body mass index; FEV1: forced expiratory volume in 1 s.