Comparison of CT indices between male and female subjects in the control group
| Male | Female | |
|---|---|---|
| N | 23 | 36 |
| Age (years) | 64 (47–77) | 67 (50–77) |
| Height (cm) | 167.2 (6.7) | 152.4 (6.6) |
| BSA (m2) | 1.74 (0.14) | 1.46 (0.10) |
| Ai/BSA (apical) | 12.5 (4.1) | 11.6 (3.8) |
| WA% (apical) (%) | 57.0 (5.8) | 58.8 (6.2) |
| Ai/BSA (basal) | 12.5 (2.9) | 12.7 (4.3) |
| WA% (basal) (%) | 55.7 (3.9) | 57.2 (6.2) |
| SD_Ri (mm) | 0.18 (0.0043) | 0.17 (0.047) |
| SD_Ri /√BSA | 0.14 (0.034) | 0.14 (0.040) |
| CV_Ri | 0.052 (0.013) | 0.055 (0.016) |
Values are mean (SD) or median (range).
No parameter showed significant difference.
Ai, luminal area; BSA, body surface area; SD_Ri and CV_Ri, parameters for shape irregularity of the airway lumen (see text); WA%, percentage ratio of wall area to total airway area.