Table 2.
Comparison of participant expected (original HD-ISS) versus observed (PIN-substituted HD-ISS) membership.
| Expected (original HD-ISS) (% total) | Observed (PIN-substituted HD-ISS) (% total) | |
|---|---|---|
| Stage ≤1 | 109 (45.4) | 114 (47.5) |
| Stage 2 | 31 (12.9) | 63 (26.3) |
| Stage 3 | 100 (41.7) | 63 (26.3) |
PIN, Prognostic Index Normed; HD-ISS, Huntington’s Disease Integrated Staging System.