Variables | Total (n=51) | Type IVb (n=24) | Type IVc(n=27) | P values |
Baseline characteristics | ||||
Mean age (years) | 5.6±4.1 | 5.1±3.9 | 6.1±4.4 | 0.358 |
Male | 38 (74.5%) | 19 (79.2%) | 19 (70.4%) | 0.472 |
Preoperative period (months) | 15.6±9.8 | 12.8±7.7 | 18.2±11.1 | 0.041 |
Presentation | ||||
Acute symptoms | 33 (64.7%) | 19 (79.2%) | 14 (51.9%) | 0.047 |
Bleeding history | 21 (41.2%) | 10 (41.7%) | 11 (40.7%) | 0.947 |
Chronic symptoms | 18 (35.3%) | 5 (20.8%) | 13 (48.1%) | 0.047 |
Limbs' weakness | 11 (21.6%) | 3 (12.5%) | 8 (29.6%) | 0.573 |
mALS | 6.1±3.6 | 6.2±3.7 | 6.1±3.5 | 0.812 |
Radiological characteristics | ||||
Locations | 0.443 | |||
Cervical | 6 (11.8%) | 3 (12.5%) | 3 (11.1%) | – |
Thoracic | 15 (29.4%) | 9 (37.5%) | 6 (22.2%) | – |
Medullary cone | 30 (58.8%) | 12 (50.0%) | 18 (66.7%) | – |
Mean no. of FAs | 2.6±1.6 | 2.4±1.3 | 2.8±1.9 | 0.618 |
FAs, feeding arteries.; mALS, modified Aminoff–Logue Score.