Baseline patient characteristics
| Variable | Total patient cohort (n=258) |
|---|---|
| Age (years) | 44.7 (14.2) |
| Female | 168 (65.1%) |
| Smoker | |
| Never | 161 (62.4%) |
| Ex | 83 (32.2%) |
| Current | 6 (2.3%) |
| Unknown | 8 (3.1%) |
| Weight (kg) | 82.4 (20.1) |
| BMI (kg/m2)* | 29.9 (6.8) |
| Ethnicity | |
| White British | 224 (86.8%) |
| Pakistani | 19 (7.4%) |
| Other | 15 (5.8%) |
| Duration of asthma (years)† | 25.1 (15.1) |
| Age at asthma diagnosis (years)† | 19.7 (17.9) |
| Allergies (most common) | |
| House dust mite | 176 (68.2%) |
| Animal fur | 172 (66.7%) |
| Pollen | 124 (48.1%) |
| Mould | 88 (34.1%) |
| Plant material | 86 (33.3%) |
| None documented | 8 (3.1%) |
| Reported comorbidities (selected) | |
| Perennial rhinitis | 74 (28.7%) |
| Seasonal rhinitis | 49 (19.0%) |
| Nasal polyps | 37 (14.3%) |
| Sinusitis | 35 (13.6%) |
| Previous anaphylaxis | 22 (8.5%) |
| Bronchiectasis | 9 (3.5%) |
| Diabetes | 5 (1.9%) |
| None | 74 (28.7%) |
Data presented as mean (SD) or n (%).
*One patient did not have height recorded.
†Duration of asthma not recorded for 41 patients.
BMI, body mass index.