Table 1 Cohort demographics by death status at the end of the follow-up period
| Â | Alive (N = 6882) | Died(N = 7611) | Overall (N = 14,493) |
|---|---|---|---|
Ethnicity | |||
 Black African | 282 (4.1%) | 128 (1.7%) | 410 (2.8%) |
 Black Caribbean | 1091 (15.9%) | 689 (9.1%) | 1780 (12.3%) |
 South Asian | 271 (3.9%) | 177 (2.3%) | 448 (3.1%) |
 White British | 3715 (54.0%) | 5278 (69.3%) | 8993 (62.1%) |
 White Irish | 326 (4.7%) | 348 (4.6%) | 674 (4.7%) |
 Any other Asian background | 158 (2.3%) | 118 (1.6%) | 276 (1.9%) |
 Any other Black background | 117 (1.7%) | 66 (0.9%) | 183 (1.3%) |
 Any other ethnic group or any other mixed backgrounda | 302 (4.4%) | 183 (2.4%) | 485 (3.3%) |
 Any other White background | 460 (6.7%) | 395 (5.2%) | 855 (5.9%) |
 Missing | 160 (2.3%) | 229 (3.0%) | 389 (2.7%) |
Age at diagnosis | |||
 Mean (SD) | 80.4 (7.00) | 83.5 (7.00) | 82.0 (7.18) |
Gender | |||
 Female | 4380 (63.6%) | 4498 (59.1%) | 8878 (61.3%) |
 Male | 2502 (36.4%) | 3111 (40.9%) | 5613 (38.7%) |
MMSE score within 6 months of index diagnosis | |||
 Mean (SD) | 19.4 (6.20) | 17.6 (6.27) | 18.5 (6.30) |
Index of multiple deprivation score (based on neighbourhood)b | |||
 Mean (SD) | 26.3 (11.5) | 26.6 (11.6) | 26.5 (11.6) |
Subtype | |||
 Lewy body dementia | 287 (4.2%) | 357 (4.7%) | 644 (4.4%) |
 Mixed dementia | 1547 (22.5%) | 1740 (22.9%) | 3287 (22.7%) |
 Other or unspecified dementia | 689 (10.0%) | 1365 (17.9%) | 2054 (14.2%) |
 Alzheimer’s disease | 3332 (48.4%) | 2457 (32.3%) | 5789 (39.9%) |
 Vascular dementia | 1027 (14.9%) | 1692 (22.2%) | 2719 (18.8%) |