Table 1.
Patient clinical characteristics.
| Total (n=92) | No dysphagia (n=71) | Dysphagia (n=21) | P | |
|---|---|---|---|---|
| Age (years) | 44.3 (10.8) | 43.9 (10.2) | 45.7 (12.8) | 0.498 |
| Men (n, %) | 26 (28.3) | 23 (32.4) | 3 (14.3) | 0.167 |
| Disease duration (months) | 24.00(6.00, 72.00) | 24.00(5.00, 72.00) | 48.00 (24.00, 120.00) | 0.052 |
| BMI (kg/m2) | 24.54 (3.36) | 24.65 (3.45) | 24.26 (3.18) | 0.656 |
| Clivus (cm) | 3.62 (0.44) | 3.69 (0.41) | 3.35 (0.46)∗ | 0.003 |
| Foramen magnum (cm) | 3.26 (0.40) | 3.27 (0.33) | 3.24(0.57) | 0.793 |
| Supraocciput (cm) | 4.09 (0.72) | 4.10 (0.71) | 4.05 (0.75) | 0.817 |
| Length of PCF (cm) | 7.81 (0.66) | 7.84 (0.67) | 7.72 (0.63) | 0.489 |
| Height of PCF (cm) | 2.83 (0.42) | 2.90 (0.41) | 2.63 (0.40)∗ | 0.013 |
| Tonsillar herniation (cm) | 0.97 (0.41) | 0.91 (0.36) | 1.18 (0.48)∗ | 0.009 |
| Syringomyelia (n, % ) | 67 (77.0) | 53 (79.1) | 14 (70.0) | 0.383 |
| Slope Inclination Angle (°) | 45.10 (13.36) | 46.77 (12.86) | 39.43 (13.77)∗ | 0.026 |
| Cranial Spinal Angle (°) | 22.75 (6.73) | 20.85 (4.76) | 29.15(8.40)∗∗ | <0.001 |
Continuous data were shown as mean (SD) and categorical data were n (%). Abbreviations: PCF, posterior cranial fossa. ∗P<0.05; ∗∗P<0.001.