Table 1. Comparison of all patients received AChEI treatment (full cohort) and the analysed sample.
| Characteristic | Full cohort (n = 3416) | Analysed sample* (n = 2460) |
| MMSE score at drug initiation | ||
| 25 and over | 705 (20.6%) | 529 (21.5%) |
| 21–24 | 913 (26.7%) | 706 (28.7%) |
| 20–10 | 1633 (47.8%) | 1161 (47.2%) |
| less than 10 | 165 (4.8%) | 64 (2.6%) |
| Age at AChEI initiation | ||
| <65 years | 123 (3.6%) | 89 (3.6%) |
| 65–79 years | 1390 (40.7%) | 1028 (41.8%) |
| 80+ years | 1903 (55.7%) | 1343 (54.6%) |
| Gender | ||
| Male | 1208 (35.4%) | 870 (35.4%) |
| Female | 2207 (64.6%) | 1590 (64.6%) |
| Ethnicity | ||
| White | 2808 (83.8%) | 2044 (84.1%) |
| Non-white | 543 (16.2%) | 386 (15.9%) |
| Marital status | ||
| Married/cohabiting | 1332 (41.4%) | 953 (40.4%) |
| Divorced/single/separated or widowed | 1885 (58.6%) | 1404 (59.6%) |
| Education | ||
| No qualifications | 784 (33.4%) | 630 (35.1%) |
| Standard qualification | 451 (19.2%) | 352 (19.6%) |
| Advanced qualification | 1114 (47.5%) | 811 (45.2%) |
| Deprivation quintile | ||
| 1 (most deprived) | 741 (22.0%) | 521 (21.5%) |
| 2 | 689 (20.5%) | 466 (19.2%) |
| 3 | 638 (19.0%) | 459 (18.9%) |
| 4 | 889 (26.4%) | 668 (27.5%) |
| 5 (least deprived) | 408 (12.1%) | 314 (12.9%) |
| Type of dementia diagnosed at any point | ||
| Alzheimer's disease | 2760 (80.8%) | 2050 (83.3%) |
| Vascular dementia | 673 (19.7%) | 491 (19.9%) |
| Lewy body dementia | 118 (3.4%) | 89 (1.8%) |
*Sufficient MMSE data (i.e. at least one score within 12 months before and one score within 36 months after treatment initiation) and measurement restricted to 12 months before and 36 months after treatment initiation.