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Table 1 Patient’s characteristics

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

FactorsTotal (n = 40)
Pre-bronchodilator (%)
Post-bronchodilator (%)
CT inter-lumen diameter (mm)
  1. Continues data represented as (mean, SD, minimum, and maximum)
  2. SD standard deviation, FEV1% forced expiratory volume in 1 s, FVC% forced volume capacity, PEF25–75% peak expiratory flow at 25–75% level, 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