Table 2.
Post-hoc analysis between proportion of assessments and detentions between different ethnic groups to the White British proportion
| Ethnic group | Proportion assessed (95 % confidence interval) | χ 2 | p value | Proportion detained (95 % confidence interval) | χ 2 | p value | |
|---|---|---|---|---|---|---|---|
| Service-user population | White British/other | 1.2 % (1.1, 1.4 %) | – | – | 1.2 % (1.1, 1.4 %) | – | – |
| Asian Pakistani | 3.4 % (2.9, 4.0 %) | 110 | * | 3.4 % (2.9, 4.0 %) | 72.4 | * | |
| Asian Indian | 2.7 % (2.0, 3.6 %) | 26.41 | * | 2.7 % (2.0, 3.6 %) | 11.51 | * | |
| Asian Bangladeshi | 2.5 % (1.4, 4.2 %) | 6.035 | 0.210 | 2.5 % (1.4, 4.2 %) | 11.5 | * | |
| African Caribbean | 4.6 % (3.9, 5.5 %) | 188.99 | * | 4.6 % (3.9, 5.5 %) | 142.86 | * | |
| Black African | 8.3 % (6.4, 10.6 %) | 254.2 | * | 8.3 % (6.4, 10.6 %) | 122.82 | * | |
| Birmingham population | White British/Other | 0.06 % (0.057, 0.069 %) | 52.3 | – | 0.04 % (0.039, 0.049 %) | – | – |
| Asian Pakistani | 0.13 % (0.107, 0.153 %) | 2.56 | * | 0.09 % (0.071, 0.109 %) | 33.8 | * | |
| Asian Indian | 0.08 % (0.060, 0.108 %) | 0.13 | 0.110 | 0.05 % (0.035, 0.073 %) | 0.403 | 0.525 | |
| Asian Bangladeshi | 0.05 % (0.031, 0.095 %) | 269.3 | 0.722 | 0.05 % (0.028, 0.090 %) | 0.144 | 0.705 | |
| African Caribbean | 0.29 % (0.244, 0.351 %) | 96.96 | * | 0.21 % (0.171, 0.263 %) | 203.2 | * | |
| Black African | 0.23 % (0.174, 0.292 %) | 52.3 | * | 0.14 % (0.096, 0.189 %) | 43.50 | * |
* p < 0.001 (Bonferroni adjustment for 15 comparison tests)