TABLE 3.
Comparison of cochlear CT value in affected ears stratified by disease duration (Unit: Hu).
| Anatomical region | Short duration (< 10 years) (n = 42) | Medium duration (10–20 years) (n = 51) | Long duration (> 20 years) (n = 35) | F-value | P-value |
|---|---|---|---|---|---|
| Basal turn | 1618.42 ± 205.35 | 1506.73 ± 197.18* | 1410.16 ± 185.79*# | 10.79 | <0.001 |
| Middle turn | 1658.27 ± 239.42 | 1615.84 ± 251.36 | 1578.65 ± 248.91 | 1.00 | 0.370 |
| Apical turn | 1789.52 ± 287.43 | 1762.18 ± 305.67 | 1738.25 ± 301.24 | 0.28 | 0.753 |
| Internal auditory canal | 1872.69 ± 295.38 | 1853.42 ± 308.15 | 1842.18 ± 299.67 | 0.10 | 0.903 |
| Overall mean CT value | 1714.73 ± 208.40 | 1672.54 ± 219.38 | 1634.31 ± 217.82 | 1.34 | 0.265 |
*P < 0.05 compared with the short disease duration group. #P < 0.05 compared with the medium disease duration group.