Correlation of mMRC and Borg score | With airflow obstruction | No airflow obstruction | ||

Coefficient | P Value | Coefficient | p Value | |

Non adjusted | 0.6717 (n = 133) | <0.001 | 0.8804 (n = 161) | <0.001 |

Adjusted with age, BMI, FEV1 and % predicted distance | 0.5749 (n = 133) | 0.001 | 0.7476 (n = 161) | <0.001 |

Adjusted with age, BMI, FEV1 and % predicted distance, TLC, FRC, DLCO | 0.4084 (n = 114) | 0.52 | 0.6779 (n = 140) | 0.001 |