Table 6.
Cox regression analyses for the effect of cortical amyloid-β scores, Braak Alzheimer’s disease and Parkinson’s stages and cortical Lewy body scores on time to dementia
| n (high versus with low burden or stage) | Estimated relative hazard | 95% CI (lower–upper) | P-value | |
|---|---|---|---|---|
| Total cortical amyloid-β score >18 | 13 versus 6 | 6.43 | 1.33–111.67 | 0.017* |
| Braak Alzheimer’s disease stage >11 | 19 versus 7 | 1.10 | 0.46–2.66 | 0.83 |
| Brook Porkinson’s disease stage >5 | 10 versus 5 | 2.15 | 0.76–6.07 | 0.15 |
| Total cortical Lewy Body score >10 | 10 versus 13 | 2.53 | 0.98–6.52 | 0.055 |
*
Significant findings.