Table 3 Concordance correlation coefficients (95% confidence intervals) for QOL-ACC utility scores for the full sample and by cognition subgroup
|  | Full sample (n = 63) | No impairment (n = 22) | Mild-to-moderate impairment (n = 41) |
|---|---|---|---|
Self-report & proxy-proxy | 0.507 (0.33, 0.68) | 0.466 (0.14, 0.80) | 0.523 (0.32, 0.73) |
Self-report & proxy-person | 0.557 (0.40, 0.71) | 0.537 (0.25, 0.82) | 0.563 (0.39, 0.75) |