| SARS-CoV-2 | Severe acute respiratory syndrome coronavirus 2 |
| COVID-19 | Coronavirus disease 2019 |
| PP | Pooled prevalence |
| CI | Confidence interval |
| OR | Odds ratio |
| ICU | Intensive care unit |
| LOS | Length of stay |
| COPD | Chronic obstructive pulmonary diseases |
| PRISMA | Preferred Reporting Items for Systematic Reviews and Meta-Analyses |
| PFT | Pulmonary functional test |
| WHO | World Health Organization |
| UK | United Kingdom |
| CT | Computerized tomography |
| DLCO | Carbon monoxide diffusing capacity |
| mMRC | Modified Medical Research Council Dyspnea Scale |
| GI | Gastrointestinal |
| GAD-7 | Generalized anxiety disorder-7 |
| PTSD | Post-traumatic stress disorder |
| 6 MWT | 6-min walk test |
| EQ-5D-5L | European Quality of Life Five-Dimension Five-Level Scale |
| GGO | Ground-glass opacity |
| FVC | Forced vital capacity |
| FEV1 | Forced expiratory volume in one second |
| VC | Vital capacity |
| FEV1/FEV | Forced expiratory volume in one second/forced expiratory volume |
| TLC | Total lung capacity |
| GRADE | Grading of Recommendations, Assessment, Development, and Evaluation |
| RR | Risk Ratio |