Table 4.

CT scan parameters

	Female patients with asthma	Male patients with asthma	P value
N	184	120
CT scan-derived parameters
Median lumen area, mm2 (mean (SD))	18.15 (4.27)	22.11 (5.53)	<0.001
Median wall area, mm2 (mean (SD))	31.11 (5.08)	36.91 (6.46)	<0.001
Median total area, mm2 (mean (SD))	49.59 (8.61)	59.37 (11.14)	<0.001
WA% (wall area/total area), % (mean (SD))	63.22 (3.36)	62.73 (3.63)	0.226
Pi10, mm (mean (SD))	7.14 (0.90)	7.29 (1.06)	0.195
VI 856, % (median (IQR))	7.83 (2.49, 18.18)	8.40 (2.58, 20.64)	0.897
VI 950, % (median (IQR))	2.73 (1.11, 6.06)	5.38 (2.27, 10.19)	<0.001

CT scan parameters at baseline of subjects with asthma in the ATLANTIS study, stratified by sex.

Pi10, 10 mm internal luminal perimeter; VI 856, voxel index at −856 Hounsfield units; VI 950, voxel index at −950 Hounsfield units.