characteristics | Type I (n = 104) | Type II (n = 162) | P |
---|---|---|---|
Vertebral deformities, n (%) | 0.001* | ||
Failure of segmentation | 21 (20.2) | 55 (34.0) | |
Failure of formation | 11 (10.6) | 34 (21.0) | |
Mixed type | 72 (69.2) | 73 (45.1) | |
Malformation, n (%) | 0.015* | ||
Single malformation | 10 (9.6) | 34 (21.0) | |
Multiple malformation | 94 (90.4) | 128 (79.0) | |
Levels of vertebral deformities, n | 5.1 ± 2.5 | 3.9 ± 2.2 | < 0.001* |
Location of deformities, n (%) | 0.004* | ||
T | 65 (62.5) | 126 (77.8) | |
L | 4 (3.8) | 10 (6.2) | |
T + L | 35 (33.7) | 26 (16.0) | |
Exuberant neural arches, n (%) | < 0.001* | ||
with | 32 (30.8) | 21 (13.0) | |
without | 72 (69.2) | 141 (87.0) |