| Intellectual disabilities n=23 016 (100) n (%) | No intellectual disabilities n=5 170 037 (100) n (%) | |
| Ethnicity* | ||
| White | 22 384 (97.3) | 4 995 665 (96.6) |
| Asian | 78 (0.3) | 133 506 (2.6) |
| Mixed/multiple ethnicities | 446 (1.9) | 19 068 (0.4) |
| African | 45 (0.2) | 28 170 (0.5) |
| Caribbean or black | 29 (0.1) | 6279 (0.1) |
| Other ethnic groups | 34 (0.1) | 13 698 (0.3) |
*p<0.001.