Patients' demographics, comorbidities and maximal respiratory support required during hospital attendance (n=526)
| Patients, n (%) | |
|---|---|
| Sex | |
| Women | 221 (42.0) |
| Men | 305 (58.0) |
| Ethnicity | |
| Asian or Asian British | 54 (10.3) |
| Black, Black British, Caribbean or African | 85 (16.2) |
| Mixed or multiple ethnic groups | 11 (2.1) |
| White | 167 (31.7) |
| Any other ethnic group | 116 (22.1) |
| Not specified | 93 (17.7) |
| Pre-existing comorbidities | |
| Hypertension | 225 (42.8) |
| Diabetes mellitus | 152 (28.9) |
| Asthma | 77 (14.6) |
| Ischaemic heart disease | 43 (8.2) |
| Obesity | 41 (7.8) |
| Chronic kidney disease | 25 (4.8) |
| Chronic obstructive pulmonary disease | 23 (4.4) |
| Heart failure | 6 (1.1) |
| Interstitial lung disease | 3 (0.6) |
| Maximal respiratory support required during hospital attendance or inpatient stay | |
| None | 148 (28.1) |
| Supplementary oxygen with peak FiO2 <60% | 238 (45.2) |
| Supplementary oxygen with peak FiO2 ≥60% but not requiring CPAP, HFNO/Optiflow, NIV or mechanical ventilation | 65 (12.4) |
| CPAP | 6 (1.1) |
| HFNO/Optiflow | 3 (0.6) |
| NIV | 2 (0.4) |
| Mechanical ventilation | 64 (12.2) |
CPAP = continuous positive airway pressure; FiO2 = fraction of inspired oxygen; HFNO = high-flow nasal oxygen; NIV = non-invasive ventilation.