| BMI | Body Mass Index |
| CI | Confidence Interval |
| COPD | Chronic Obstructive Pulmonary Disease |
| HCWs | Healthcare Workers |
| OR | Odds Ratio |
| PR | Pulmonary Rehabilitation |
| PTs | Physical Therapists |
| RTs | Respiratory Therapists |
| STATA | Statistical Software by StataCorp |
| UK | United Kingdom |
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