Characteristics of patients with bronchiectasis, with and without upper airway symptoms (UASs), excluding patients with either UASs and a Lund–Mackay score ≤3 or lack of UASs and Lund–Mackay score ≥4
| No UASs | UASs | p-value | |
| Subjects | 104 | 59 | |
| Female | 64 (61.5) | 40 (67.8) | 0.424 |
| Age at onset years | 45.01±23.5 | 33.5±23.9 | 0.007 |
| Age at diagnosis years | 64.0±15.0 | 59.4±17.7 | 0.201 |
| Time from onset to diagnosis years | 13.0 (3.6–27) | 24 (7.7–40.6) | 0.020 |
| Presence of asthma | 5 (4.8) | 7 (11.9) | 0.122 |
| Idiopathic aetiology | 50 (48.1) | 31 (52.5) | 0.584 |
| Post-infectious aetiology | 31 (29.8) | 7 (11.9) | 0.009 |
| Eosinophils µL−1 | 200 (50–500) | 290 (158–488) | 0.002 |
| IgE IU·mL−1 | n=61 42 (11–114) | n=42 100 (13–305) | 0.066 |
| IgG IU·mL−1 | n=79 1169 (1007–1350) | n=53 1184 (962–1449) | 0.747 |
| FEV1 % pred | 81±26 | 81±26 | 0.961 |
| Chest CT Reiff score | n=86 7 (5–12) | n=46 6 (5–10) | 0.632 |
| Sinus CT Lund–Mackay score | n=38 0.5 (0–2) | n=34 12 (8–13.0) | <0.0001 |
| Exacerbations per year n | 2 (1–4) | 3 (2–4) | 0.035 |
| Occurrence of exacerbation in previous year | n=100 86 (86.0) | n=58 56 (96.6) | 0.034 |
Data are presented as n, n (%), mean±sd or median (interquartile range), unless otherwise stated. FEV1: forced expiratory volume in 1 s; CT: computed tomography. p<0.05 was considered significant.