Table 1.
Demographics of children diagnosed with autism spectrum disorders or intellectual disabilities
| Total (n=2,077) |
ASD (no ID) (n=1,117) (A) |
ASD (and ID) (n=303) (B) |
ID (no ASD) (n=657) (C) |
Significant comparisons |
|
|---|---|---|---|---|---|
| Child Characteristics (%) | |||||
| Age, yr | |||||
| 6–11 | 50.6 | 56.4 | 48.7 | 42.0 | A>C** |
| 12–17 | 49.4 | 43.6 | 51.3 | 58.0 | |
| Male | 72.2 | 82.6 | 80.5 | 51.4 | A>C***; B>C*** |
| Race/ethnicity | |||||
| Non-Hispanic White | 63.5 | 69.3 | 55.8 | 57.9 | |
| Non-Hispanic Black | 13.3 | 11.0 | 9.6 | 18.7 | |
| Non-Hispanic Other | 10.8 | 8.6 | 15.1 | 12.4† | |
| Hispanic | 12.4 | 11.1 | 19.6 | 11.0 | |
| Current Health Insurance | |||||
| Public | 35.8 | 29.3 | 35.2 | 46.5 | C>A** |
| Private | 61.8 | 68.0 | 63.5 | 50.9 | A>C** |
| Not Insured | 2.4 | 2.7 | 1.3† | 2.6† | |
| Child Clinical Characteristics (%) | |||||
| Depression | 18.5 | 19.3 | 22.7 | 15.1 | |
| Anxiety Problems | 37.5 | 41.1 | 49.0 | 26.1 | A>C**; B>C*** |
| ADHD | 47.8 | 49.4 | 54.6 | 42.0 | |
| Behavioral/Conduct Problems | 29.4 | 30.2 | 43.2 | 21.5 | B>A*; A>C*; B>C*** |
| Any Psychiatric Diagnosis | 64.4 | 67.8 | 76.6 | 53.1 | B>C***; A>C** |
| Household Characteristics (%) | |||||
| Highest Parental Education Level | |||||
| No High School | 8.5 | 7.1 | 7.3† | 11.4 | |
| High School | 17.7 | 13.9 | 23.8 | 21.0 | |
| College or More | 73.8 | 79.0 | 68.9 | 67.6 | |
| Federal Poverty Level | |||||
| < 100% | 21.0 | 16.0 | 20.6 | 29.4 | C>A** |
| 100–199% | 19.6 | 19.4 | 21.1 | 19.1 | |
| 200–399% | 32.1 | 32.6 | 34.6 | 30.2 | |
| ≥ 400% | 27.3 | 32.0 | 23.8 | 21.3 | A>C** |
| Household Structure (%) | |||||
| Two parent household | 66.0 | 71.8 | 66.3 | 56.3 | A>C** |
| Other | 34.0 | 28.2 | 33.7 | 43.7 | |
Notes:
*
.01≤p<.05
**
.001≤p<.01
***
p<.001
ASD: autism spectrum disorder, ID: intellectual disability, ADHD: attention deficit-hyperactivity disorder
†
Estimates have a relative standard error above 30% and may be unreliable