Table 1. Patient groups.
Cystic fibrosis | Controls | |
N | 59 | 26 |
Age [yrs] | 22±15 | 25±9 |
Sex (m∶f) | 31/28 | 12/14 |
WBC (109/l) | 10±5 | 8±3 |
FEV1 (% pred) | 63±15 | - |
Neutrophils in sputa (%) | 83±32 | 17±10 |
P. aeruginosa † | 35 | 0 |
Antibiotics | 35 | 0 |
dF508homozygous/heterozygous/other | 34/19/6 | n.d. |
Results are expressed as means ± SD; m: male, f: female; WBC: white blood count; FEV1: Forced expiratory volume in 1 second (% of predicted);
P. aeruginosa bacteria isolated in at least 2 consecutive sputum samples with a minimum of a 6-month interval; n.d. not determined.