Table 2 Differences in patient characteristics and measurements according to the presence of hydrocephalus
From: Predictors of cervical myelopathy and hydrocephalus in young children with achondroplasia
Characteristics and parametersa | Yes | No | p-value |
|---|---|---|---|
N | 8 | 57 | |
Sex | |||
Male | 5 (63) | 31 (54) | 0.96 |
Female | 3 (37) | 26 (46) | |
Age (months) | 7.25 ± 4.20 | 14.98 ± 8.92 | 0.02 |
Follow up period (months) | 18.12 ± 17.90 | 42.63 ± 22.99 | 0.005 |
FM AP (mm) | 6.78 ± 1.90 | 8.73 ± 2.42 | 0.03 |
Cord constriction ratio | 0.28 ± 0.14 | 0.19 ± 0.16 | 0.145 |
Anterior indentation | |||
0 | 3 (38) | 21 (37) | 0.20 |
1 | 1 (12) | 23 (40) | |
2 | 4 (50) | 13 (23) | |
Posterior indentation | |||
0 | 1 (12) | 37 (65) | 0.009 |
1 | 3 (38) | 12 (21) | |
2 | 4 (50) | 8 (14) | |
Indentation index | |||
0 | 1 (12) | 21 (37) | 0.19 |
1 | 1 (12) | 14 (25) | |
2 | 2 (25) | 9 (16) | |
3 | 1 (12) | 7 (12) | |
4 | 3 (38) | 6 (10) | |
Frontal horn width (mm) | 49.85 ± 11.70 | 40.08 ± 7.46 | 0.002 |
BPD (mm) | 138.96 ± 13.40 | 137.13 ± 7.53 | 0.57 |
Evans ratio | 0.36 ± 0.08 | 0.29 ± 0.05 | 0.002 |
Periventricular HSI (mm2) | 22.49 ± 22.98 | 12.34 ± 12.65 | 0.06 |
FMD | |||
Yes | 7 (88) | 14 (25) | |
No | 1 (12) | 43 (75) | |
VP shunt | |||
Yes | 1 (12) | 0 (0) | |
No | 7 (88) | 57 (100) | |
Later event | |||
Yes | 0 (0) | 2 (3) | 1.00 |
No | 8 (100) | 55 (97) | |