TABLE 2.
Standardized Parameter Estimates and Risk Ratios of Study Variables on Disability Rates Among Texas Schoolchildren, 2004
| Autism, B (SE) | RR | Intellectual Disability, B (SE) | RR | Learning Disability, B (SE) | RR | |
| Model 1a | −0.11 (0.01)*** | 0.86 | 0.08 (0.01)*** | 1.08 | 0.02 (0.00)** | 1.02 |
| Model 2b | 0.08 (0.00)*** | 1.09 | −0.12 (0.01)*** | 0.89 | −0.02 (0.00)*** | 0.98 |
| Model 3c | ||||||
| Hispanics in school district per 10% increase, % | −0.08 (0.02)*** | 0.92 | −0.01 (0.00)*** | 0.99 | 01 (0.01) | … |
| Non-Hispanic Whites in school district per 10% increase, % | 0.02 (0.01) | … | −0.02 (0.00)*** | 0.98 | −0.01 (0.01) | … |
| No. of pediatricians, child psychiatrists, and neurologists in county per 10 000 population | 0.06 (0.03)* | 1.06 | … | −0.05 (0.02)** | 0.95 | |
| Urbanicity | ||||||
| Urban vs rural | 0.28 (0.05)*** | 1.32 | −0.12 (0.03)*** | 0.89 | −0.05 (0.03)* | 0.96 |
| Suburban vs rural | 0.19 (0.04)*** | 1.20 | −0.24 (0.03)*** | 0.79 | −0.10 (0.02)*** | 0.90 |
| County population density, 100 persons per square mile | 0.01 (0.01) | … | … | −0.01 (0.00)** | 0.99 | |
| County median household income per $10 000 increase, $ | 0.10 (0.05)* | 1.11 | −0.21 (0.04)*** | 0.81 | −0.05 (0.02)** | 0.95 |
Note. RR = risk ratio. Ellipses indicate nonsignificance.
a
Unadjusted direct effect of percentage Hispanics in school district per 10% increase.
b
Unadjusted direct effect of percentage non-Hispanic Whites in school district per 10% increase.
c
Fully adjusted, all variables included.
*P < .05; **P < .01; ***P < .001.