Table 1.
Descriptive statistics for non-converters, converters, and the combined sample (mean (SD) or counts (%)).
| Non-Converters | Converters | Combined | |
|---|---|---|---|
| N | 853 | 225 | 1078 |
| CAGa | 42·21 (2·58) | 43·57 (2·85) | 42·49 (2·69) |
| Agea | 38·92 (10·24) | 43·03 (10·31) | 39·78 (10·39) |
| CAPa | 334·89 (82·74) | 436·59 (81·82) | 356·12 (92·30) |
| Duration | 4·28 (3·31) | 6·66 (2·48) | 4·78 (3·30) |
| Educationa | 14·56 (2·62) | 14·08 (2·50) | 14·46 (2·60) |
| Female N | 540 (63%) | 147 (65%) | 687 (64%) |
a
Measured at study entry. Age and education are expressed in years. Duration=years in the study.
CAG=cytosine-adenine-guanine expansion length. CAP=(Age at Baseline) × (CAG 33·66).