Table 3:
Cerebellum and brain stem volumes of patients and control subjects
| SCA3 | SCA6 | Control Subjects | |
|---|---|---|---|
| Cerebellum volume (ml) | |||
| Mean ± SD | 119.0 ± 17.2 | 98.1 ± 14.4 | 132.6 ± 11.3 |
| P | 004ab | 006 (SCA3)bc, <.001 (SCA6)b | |
| Brain stem volume (ml) | |||
| Mean ± SD | 21.5 ± 3.8 | 27.3 ± 2.5 | 28.8 ± 2.0 |
| P | <.001ab | <.001 (SCA3),bc .027 (SCA6)d | |
a
Group differences between SCA3 and SCA6 assessed by variance analysis with disease duration as a covariate (GLM model).
b
Highly significant with P < .01.
c
Group differences between control groups and patient groups assessed by Student ttests.
d
Significant with P < .05.