Birth, Sociodemographic, Family, and Health Care Utilization Characteristics of Children by CD Status, National Estimates From the 2001 ECLS-B

TotalCD Status, Ages 9 to 24 mo
TDEverPaResolvedNewly DevelopedPersistentOverall χ2P
Total (unweighted)800065501450600650200
Birth factors
 Birth weight status<.0001<.0001
  Very low0.83.3***5.2b1.47.0b***
 Plurality status<.0001<.0001
  Singleton birth98.696.595.2b97.696.2b
  Twin or triplet1.43.54.8b2.43.8b
 Congenital anomaly.05.03
Sociodemographic and family factors
 Child gender<.0001<.0001
 Child race/ethnicity<.0001<.0001
  Non-Hispanic white55.741.3***53.432.8b40.5b***
  Non-Hispanic black13.017.8***16.118.6b20.6b**
  Non-Hispanic other7.
 Child health insurance status<.0001<.0001
  No insurance0.50.86.1b5.4b4.2b
 Family structure<.0001<.0001
  Single-parent household18.724.324.5b22.1b35.8b
  Two-parent household81.375.775.5b77.9b64.2b
 Other children in the household.28.03**
  First quintile (lowest)19.025.2***22.626.8b26.2*
  Second quintile19.026.2***19.630.7b27.1***
  Third quintile20.318.916.620.8b17.5***
  Fourth quintile21.015.4***21.210.5b19.6***
  Fifth quintile (highest)20.714.4***19.911.2b9.6***
 Any EI services<.0001<.0001
 Developmental delay diagnosis<.0001<.0001
  • Weighted estimates. Percentages may not sum to 100 due to rounding. Unweighted sample sizes were rounded to the nearest 50 in accordance with NCES guidelines. CD was defined by the lowest 10th percentile of the BSF-R mental scale at ages 9 and/or 24 mo, categorized as follows: resolved (CD detected at 9 mo but not at 24 mo); newly developed (CD detected at 24 mo but not at 9 mo); and persistent (CD detected at 9 and 24 mo); versus TD. ***P ≤ .0001; **P ≤ .01; *P ≤ .05 for difference between resolved, newly developed, and persistent CD status.

  • a P value for difference comparing children with ever CD to TD children.

  • b Values are statistically different from TD children (P ≤ .05).