| FVC | forced vital capacity |
| FEV1 | forced expiratory volume at 1st second |
| COVID-19 | Coronavirus disease 2019 |
| PFT | pulmonary function test |
| DLCO | carbon monoxide diffusing capacity |
| COPD | chronic obstructive pulmonary disease |
| ATS | American Thoracic Society |
| ERS | European Respiratory Society |
| PCR | polymerase chain reaction |
| GLI | Global Lung Initiative |
| SD | standard deviation |
| CI | confidence interval |
| IQR | interquartile range |
| HS | home spirometry |
| CS | clinical spirometry |
| LoA | limits of agreement |
| ICC | intraclass correlation coefficient |
| Z | z-score |
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