Quality of life and longitudinal outcomes in the four clusters
| Cluster 1: “Pseudomonas” | Cluster 2: “Other chronic infection” | Cluster 3: “Daily sputum” | Cluster 4: “Dry bronchiectasis” | Overall p-value | |
| Patients | 179 (100) | 273 (100) | 373 (100) | 307 (100) | |
| Quality of life | |||||
| SGRQ | 58 (34–72) | 43 (27–61) | 39 (27–55) | 29 (12–40) | <0.001 |
| Outcomes | |||||
| Exacerbations during 1-year follow-up | 2 (1–3) | 2 (1–2) | 1 (0–2) | 1 (0–2) | 0.0001 |
| At least one hospitalisation during 1-year follow-up | 67 (42) | 41 (16) | 56 (16) | 42 (14) | <0.0001 |
| Mortality during 1-year follow-up | 9 (5.1) | 4 (1.5) | 13 (3.6) | 14 (4.9) | 0.12 |
| Mortality during 3-year follow-up | 26 (17) | 19 (7.6) | 24 (8.2) | 23 (11) | 0.02 |
Data are presented as n (%) or median (interquartile range), unless otherwise stated. SGRQ: St George's Respiratory Questionnaire.