Table 2 Comparison of self-reported dementia cases and Cluster 3 “Likely Dementia” cases
Wave | Number of participants | SHARE | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Clusters | Self-reported dementia | Metrics | ||||||||
Cluster 1 | Cluster 2 | Cluster 3 (Likely Dementia) | Missing | No | Yes | AUC (95% CI) | Sensitivity (95% CI) | Specificity (95% CI) | ||
Wave 1 (2004–05) | 15,278 | 11,369 (74.4%) | 3374 (22.1%) | 535 (3.5%) | NA | NA | NA | NA | NA | NA |
Wave 2 (2006–07) | 15,278 | 11,433 (74.8%) | 2832 (18.5%) | 1013 (6.6%) | 40 (0.3%) | 14,960 (97.9%) | 278 (1.8%) | 0.805 (0.776–0.835) | 0.665 (0.610–0.721) | 0.945 (0.942–0.949) |
Wave 4 (2010–11) | 10,008 | 7911 (79%) | 1406 (14%) | 691 (7%) | 21 (0.2%) | 9735 (97.3%) | 252 (2.5%) | 0.825 (0.794–0.855) | 0.702 (0.646–0.759) | 0.947 (0.943–0.952) |
Wave 5 (2012–13) | 8418 | 6429 (76.4%) | 1312 (15.6%) | 677 (8%) | 10 (0.1%) | 8129 (96.6%) | 279 (3.3%) | 0.794 (0.763–0.825) | 0.649 (0.593–0.705) | 0.939 (0.934–0.944) |
Wave 6 (2014–15) | 6485 | 4913 (75.8%) | 987 (15.2%) | 585 (9%) | 8 (0.1%) | 6204 (95.7%) | 273 (4.2%) | 0.755 (0.723–0.787) | 0.579 (0.520–0.637) | 0.931 (0.925–0.938) |
Wave 7 (2016–17) | 5533 | 3991 (72.1%) | 1028 (18.6%) | 514 (9.3%) | 5 (0.1%) | 5252 (94.9%) | 276 (5%) | 0.745 (0.712–0.777) | 0.558 (0.499–0.617) | 0.931 (0.925–0.938) |