Table 4 Quantitative features of the oval window region within the entire patient and group-wise comparison
Measurement of distance and angle, median (IQR) | Overall (n = 479) | Age | Sex | ||||||
|---|---|---|---|---|---|---|---|---|---|
≤ 65 years (n = 363) | > 65 years (n = 116) | U | P value | Female (n = 269) | Male (n = 210) | U | P value | ||
Oval window length (mm) | 2.9 (2.7, 3.0) | 2.7 (2.6, 2.9) | 2.7 (2.5, 2.8) | 16019.0 | < 0.001 | 2.8 (2.7, 3.0) | 2.9 (2.8, 3.1) | 34375.5 | < 0.001 |
Stapes footplate length (mm) | 2.7 (2.6, 2.9) | 2.7 (2.6, 2.9) | 2.6 (2.5, 2.8) | 16974.0 | 0.002 | 2.7 (2.5, 2.8) | 2.8 (2.6, 2.9) | 33531.5 | < 0.001 |
Stapes footplate-oval window angle (°) | 12.1 (9.4, 15.3) | 12.1 (9.4, 15.3) | 11.8 (9.4, 14.6) | 20346.0 | 0.585 | 11.8 (9.5, 14.8) | 12.3 (9.3, 15.8) | 26759.5 | 0.323 |
Stapes footplate protrusion depth (mm) | 0.4 (0.3, 0.5) | 0.4 (0.3, 0.5) | 0.4 (0.3, 0.4) | 16664.0 | 0.001 | 0.4 (0.3, 0.5) | 0.4 (0.3, 0.5) | 31275.0 | 0.043 |