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Table 3 Correlation of FEV1% and intraluminal size during inspiratory stage

From: Airflow limitation: is there a correlation between spirometry and quantitative computed tomography measurements in patients with chronic obstructive pulmonary disease?

CT inter-lumen diameterFEV1%
rP*
RB10.190.23
RB100.200.22
LB0.180.26
  1. *Pearson correlation coefficient, the sign before “r” denotes the direction of relation, P < 0.05 considered significant
  2. RB1 apical bronchus of the right upper lobe, RB10 the posterior basal bronchus of the right lower lobe, LB3 the anterior bronchus of the left upper lobe