Respiratory outcomes 12 weeks after symptom onset
| Subjects | Value |
| 60 | |
| Symptoms | |
| Dyspnoea (present/absent)* | 12 (20%) |
| UCSD dyspnoea score (n=59) | 11 (3–26) |
| Cough (present/absent) | 12 (20%) |
| Cough VAS, mm (n=58) | 10 (5–47) |
| Pulmonary function tests (n=57) | |
| FVC %-predicted | 94±16 |
| FEV1 %-predicted | 93±16 |
| FEV1/FVC | 0.90±0.13 |
| TLC %-predicted | 86±13 |
| RV %-predicted | 85±19 |
| DLCO %-predicted | 77±16 |
| 6 min walk test | |
| Baseline SpO2 (%) | 98 (96–99) |
| End of test SpO2 (%) | 97 (94–99) |
| 6MWD %-predicted | 96±16 |
| 6MWD (m) | 504±107 |
| High-resolution CT | |
| Ground glass score | 7 (2–16) |
| Reticulation score | 2 (0–8) |
| Total ground glass+reticulation score† | 13 (3–25) |
Data are shown as n (%), median (IQR) or mean±SD.
*Dyspnoea was presented as a dichotomous (presence/absent) response, with no specified reference to their symptoms before COVID-19.
†The total ground glass+reticulation score median value is greater than the sum of the individual medians for these variables.
DLCO, diffusion capacity of the lung for carbon monoxide; FEV1, forced expiratory volume in one second; FVC, forced vital capacity; 6MWD, 6-minute walk distance; RV, residual volume; SpO2, oxygen saturation by pulse oximetry; TLC, total lung capacity; UCSD, University of California San Diego shortness of breath questionnaire; VAS, Visual Analogue Scale.