Comparisons of computed tomography characteristics among the five lung lobes in 157 male smokers.

<p>Data are presented as medians (25^th, 75^th percentiles). LAV, low attenuation volume at the threshold level of −950 Hounsfield units; √Aaw at Pi10, square root of airway wall area of the hypothetical airway with an internal perimeter of 10 mm.</p><p>*data from 146 subjects.</p>†<p>P<0.0001 for comparison among the five lung lobes by a mixed-effects model (R² = 0.78).</p>‡<p>P<0.0001 for comparison among the five lung lobes by a mixed-effects model (R² = 0.75).