Table 3. Prevalence and adjusted odds ratios (AOR) of clinician-reported ADHD diagnosis among Medicaid-insured Hispanic youth in California by county-level Hispanic isolation index and ZIP code level proportion of Hispanics.
| County-level Hispanic isolation index | % | AORa | 95% CI |
| <.5 | 1.32 | 1.00 | Reference |
| .5–.64 | 1.26 | .99 | .94–1.03 |
| ≥.65 | 1.16 | .92 | .88–.96 |
| ZIP code level of Hispanic proportion | |||
| <25% | 1.72 | 1.00 | Reference |
| 25%-50% | 1.35 | .89 | .84–.94 |
| >50% | 1.12 | .81 | .77–.86 |
a. Adjusting for age-group, sex, median household income (county level), and Medicaid eligibility group.