| Not Included | Included | ||||
---|---|---|---|---|---|---|
Characteristic | N with Characteristica | %a | Overall Na | N with Characteristica | %a | Overall Na |
Age 8-11 years | 490 | 46.8 | 1341 | 307 | 46.5 | 687 |
Male gender | 661 | 51.3 | 1341 | 323 | 52.9 | 687 |
Race/ethnicity | Â | Â | Â | Â | Â | Â |
  African American | 451 | 15.4 | 1341 | 210 | 13.0 | 687 |
  Mexican American | 386 | 11.0 | 1341 | 205 | 11.1 | 687 |
  Other race/ethnicity | 111 | 14.2 | 1341 | 56 | 12.5 | 687 |
White, non-Hispanic | 393 | 59.4 | 1341 | 216 | 63.4 | 687 |
Caregiver report of ADHD | 96 | 9.7 | 1139 | 66 | 10.8 | 684 |
DSM-IV Defined ADHD | 75 | 9.9 | 966 | 55 | 9.6 | 667 |
ADHD by DSM-IV Criteria and/or Caregiver report | 137 | 17.8 | 980 | 93 | 14.6 | 687 |
Poverty-Income Ratio | Â | Â | Â | Â | Â | Â |
  <1.00 | 370 | 20.9 | 1260 | 203 | 20.7 | 664 |
  1.00-1.85 | 318 | 22.7 | 1260 | 155 | 20.2 | 664 |
  >1.85-3.00 | 231 | 20.0 | 1260 | 125 | 22.0 | 664 |
  >3.00 | 341 | 36.4 | 1260 | 181 | 37.1 | 664 |
Reported health insurance | 1109 | 88.0 | 1325 | 564 | 83.6 | 681 |
Reported prenatal tobacco exposure | 203 | 17.2 | 1325 | 92 | 18.1 | 677 |
Birth weight <2.5Â kg | 130 | 8.2 | 1322 | 50 | 5.9 | 682 |
Reported current household tobacco smoke exposure | 298 | 23.2 | 1326 | 145 | 22.7 | 683 |
Urinary 3-PBA < LOD | 29 | 23.2 | 148 | 131 | 21.2 | 687 |