Table 4.
Crude and adjusted dementia prevalence by ethnic identity, with prevalence ratios
| 'White' N = 1677 |
'Mixed' N = 394 |
'Black' N = 261 |
Test for heterogeneity across ethnic identity groups |
||
|---|---|---|---|---|---|
| Crude prevalence | |||||
| Any dementia - crude prevalence (%) | 190/1751 10.9% (9.4-12.3%) |
25/277 9.0% (5.5-12.5%) |
49/412 11.9% (8.8-15.0%) |
||
| Crude prevalence ratio | 1 (ref) | 0.83 (0.55-1.25) | 1.10 (0.82-1.47) | X2 = 1.0, 2 df p = 0.61 | |
| Standardized/adjusted for age, sex and education1 | |||||
| Any dementia - standardized prevalence (%) | 11.1% (9.7-12.5%) | 7.8% (5.0-10.6%) | 11.8% (8.6-15.1%) | ||
| Adjusted prevalence ratio | 1 (ref) | 0.73 (0.50-1.06) | 1.04 (0.79-1.38) | X2 = 2.5, 2 df p < 0.29 | |
| Standardized/adjusted for age, sex, education and APOE genotype1 | |||||
| Any dementia - standardized prevalence (%) | 11.4% (10.0-12.8%) | 8.3% (5.4-11.2%) | 9.7% (7.3-12.1%) | ||
| Adjusted prevalence ratio | 1 (ref) | 0.74 (0.50-1.10) | 0.92 (0.69-1.23) | X2 = 2.2, 2 df p = 0.32 |
1. X2 derived from likelihood ratio tests