Table 5. Changes in pulmonary function test before PBMV and 15 days after PBMV.

Parameter	Before PBMV	Post PBMV 15 days	P value
FEV1 (%predicted)	62.18 ± 11.05	75.32 ± 11.67	<0.001*
FVC (%predicted)	54.80± 11.31	69.57 ± 12.66	<0.001*
FEV1/FVC (%)	108.52±17.21	110.45±13.25	0.351
PEFR (L/min)	229.87±68.59	342.08±59.39	<0.001*

Abbreviations: FEV₁, Forced expiratory volume at 1 second; FVC, Forced vital capacity; PEFR, Peak expiratory flow rate.

Paired Student’s t test. *indicates significant p-value (P≤0.05).