Patient characteristics
| Patients | 2596 (100%) |
| Demographics | |
| Age years | 67 (57–74) |
| ≥65 years old | 1395 (53.7%) |
| Male | 1010 (38.9%) |
| BMI kg·m−2 | 24.8 (21.8–28.1) |
| Smokers and ex-smokers | 990 (38.1%) |
| Comorbidities | |
| Ischaemic heart disease | 453 (17.5%) |
| Stroke | 152 (5.9%) |
| Diabetes | 260 (10.0%) |
| Liver disease | 41 (1.6%) |
| Chronic renal failure | 154 (5.9%) |
| COPD | 431 (16.6%) |
| Asthma | 226 (8.7%) |
| Connective tissue disease | 210 (8.1%) |
| Neurological disease | 68 (2.6%) |
| Osteoporosis | 192 (7.4%) |
| GORD | 394 (15.2%) |
| Haematological malignancy | 33 (1.3%) |
| Solid tumour | 164 (6.3%) |
| Functional status | |
| FEV1 % predicted | 73.8 (54.0–92.1) |
| FEV1 <50% predicted | 502 (19.3%) |
| Clinical status | |
| Number of exacerbations in the previous year | 2 (0–3) |
| Three or more exacerbations per year | 966 (37.2%) |
| At least one hospitalisation in the previous year | 672 (25.9%) |
| Disease severity | |
| BSI score | 6 (4–10) |
| Mild BSI score# | 753 (29.0%) |
| Moderate BSI score¶ | 927 (35.7%) |
| Severe BSI score+ | 916 (35.3%) |
| Quality of life | |
| SGRQ§ | 41.2 (24.5–59.6) |
Data are presented as median (interquartile range) unless otherwise stated. BMI: body mass index; COPD: chronic obstructive pulmonary disease; GORD: gastro-oesophageal reflux disease; FEV1: forced expiratory volume in 1 s; BSI: Bronchiectasis Severity Index; SGRQ: St George's Respiratory Questionnaire. #: BSI 0–4; ¶: BSI 5–8; +: BSI >9; §: n=987.