Characteristics of the studied population
| Patients | 299 |
| Age years | 7.2±5.7 |
| Male (n=298) | 162 (54.4) |
| Age at diagnosis months | 11.7±24.9 |
| Diagnosis circumstances | |
| Neonatal screening (n=298) | 151 (50.7) |
| Meconium ileus | 48 (16.0) |
| Symptoms | 110 (37.0) |
| CFTR genotype | |
| ΔF508/ΔF508 | 148 (49.5) |
| ΔF508/other | 110 (36.7) |
| Other | 41 (13.7) |
| History of microbiological status | |
| Haemophilus influenzae | 176 (59.1) |
| Pseudomonas aeruginosa | 136 (45.6) |
| Frequency of detection | |
| Only once | 64 (47.1) |
| Intermittent | 51 (37.5) |
| Chronic | 21 (15.4) |
| Staphylococcus aureus | 243 (81.5) |
| Frequency of detection | |
| Only once | 31 (13.0) |
| Intermittent | 104 (43.5) |
| Chronic | 103 (43.1) |
| Clinical status at visit | |
| Exacerbations | 54 (18.1) |
| Routine control | 244 (81.9) |
| Under antibiotic at visit | 119 (39.8) |
| Azithromycin | 51 (43.2) |
| Antibiotic targeting H. influenzae | 10 (8.5) |
| Antibiotic targeting P. aeruginosa | 58 (28.8) |
| Antibiotic targeting S. aureus | 34 (49.2) |
Data are presented as n, mean±sd or n (%). CFTR: cystic fibrosis transmembrane conductance regulator.