TABLE 1

Prevalence of Parent-Reported ASD for CSHCN Aged 3 to 17 Years, According to Selected Sociodemographic Factors: United States, 2005–2006

VariableEstimated Frequency in PopulationaPrevalence of CSHCN With ASD, per 10 000bAdjusted OR (95% CI)cPrevalence of ASD Among CSHCN, %dAdjusted OR and (95% CI)e
Total535865.6
Age, y
    3–5101781.21 (0.96–1.54)6.91.64 (1.27–2.12)
    6–8112941.44 (1.15–1.81)6.21.53 (1.20–1.96)
    9–11113951.48 (1.20–1.83)5.61.43 (1.14–1.79)
    12–14127991.52 (1.23–1.89)5.91.52 (1.21–1.91)
    15–1782651.003.81.00
Gender
    Male4221333.61 (3.04–4.29)7.52.65 (2.21–3.17)
    Female112371.002.91.00
Hispanic origin and race
    Hispanic, any race64550.85 (0.64–1.13)5.80.97 (0.72–1.30)
    Non-Hispanic, white3601001.005.81.00
    Non-Hispanic, black75810.70 (0.56–0.86)4.90.72 (0.57–0.91)
    Non-Hispanic, otherf32680.81 (0.62–1.06)5.20.93 (0.71–1.23)
Primary language in home
    English510951.005.61.00
    Other25310.29 (0.20–0.44)5.90.87 (0.57–1.33)
Highest education level
    <High school diploma35610.79 (0.57–1.08)5.40.91 (0.65–1.27)
    High school diploma or General Educational Development126840.84 (0.68–1.03)5.70.98 (0.79–1.21)
    >High school373911.005.61.00
Poverty status, %g
    <100106931.96 (1.55–2.47)5.81.30 (1.00–1.70)
    100 to <200132971.63 (1.34–1.98)6.31.44 (1.16–1.79)
    200 to <400160821.11 (0.91–1.35)5.61.13 (0.92–1.38)
    ≥400137771.005.01.00
Family structureh
    2 parent (biological or adoptive)2895.91.00
    2 parent (step)434.40.76 (0.54–1.07)
    Single mother1495.40.96 (0.80–1.16)
    Other316.41.08 (0.76–1.54)
Region
    Northeast1221131.007.11.00
    Midwest124910.74 (0.61–0.90)5.40.73 (0.60–0.90)
    South187830.70 (0.58–0.85)5.20.68 (0.56–0.83)
    West102670.65 (0.51–0.84)5.40.75 (0.57–0.97)
  • — indicates data are not available.

  • a Frequencies are expressed in thousands. Population estimates for each category may not equal the total because of rounding error or missing values.

  • b The denominator or universe for this prevalence rate includes all of the children with and without special health care needs.

  • c Data are adjusted by logistic regression for child's age, gender, Hispanic origin and race, primary language in home, household education level, poverty status, and region.

  • d The denominator or universe for this prevalence rate includes only CSHCN.

  • e Data are adjusted by logistic regression for child's age, gender, Hispanic origin and race, primary language in home, household education level, poverty status, family structure, and region.

  • f Non-Hispanic other includes respondents identified as non-Hispanic and Asian, Alaska Native, American Indian, Native Hawaiian, Pacific Islander, or mixed race.

  • g Data are based on the US Department of Health and Human Services poverty guidelines. For most households surveyed in 2005, 100% of poverty level was defined as $19350 for a family of 4. For most households surveyed in 2006, 100% of poverty level was defined as $20 000 for a family of 4.

  • h Family structure was assessed only for families of CSHCN. Therefore, this sociodemographic factor was not available for analyses that include all of the children in the denominator.