Comparison of cases ascertained from the various sources*
| Source | Preliminary register (%) | Prevalent register (%)† |
|---|---|---|
| *Majority of prevalent cases were identified from departmental databases (neurology; genetics). | ||
| †Amalgamation of sporadic and familial cases of late onset cerebellar ataxia. | ||
| BTHA, Bro Taf Health Authority. | ||
| Single source | ||
| Neurology databases | 43 (18.5) | 35 (46.1) |
| Genetic databases | 9 (3.9) | 8 (10.5) |
| General practices | 13 (5.6) | 5 (6.6) |
| BTHA | 101 (43.5) | 18 (23.7) |
| Multi-source | 66 (28.4) | 10 (13.1) |
| Total | 232 | 76 |