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Sponsored by: |
National Institute of Environmental Health Sciences (NIEHS) |
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Information provided by: | National Institutes of Health Clinical Center (CC) |
ClinicalTrials.gov Identifier: | NCT00339729 |
We propose a population-based case-control study among 7000 elementary school children in semi-rural Johnston County, NC. Teachers will complete a screening form on each child. Controls will be randomly selected. Mothers of potential cases and controls will be interviewed by telephone about their child's symptoms of ADHD and exposure history, their family history of ADHD, and their reproductive and exposure history. Children's shed baby teeth will be analyzed for lead. Mothers will complete brief parenting scales and the Child Behavior Checklist. School records will be collected. The study goals are to identify risk factors for ADHD including preterm delivery and childhood lead exposure.
Condition |
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Attention-Deficit Hyperactivity Disorder |
Study Type: | Observational |
Official Title: | Johnston County ADHD Study: Environmental, Reproductive and Familial Risk Factors for Attention-Deficit Hyperactivity Disorder (ADHD) |
Estimated Enrollment: | 8000 |
Study Start Date: | May 1997 |
Estimated Study Completion Date: | May 2007 |
We propose a population-based case-control study among 7000 elementary school children in semi-rural Johnston County, NC. Teachers will complete a screening form on each child. Controls will be randomly selected. Mothers of potential cases and controls will be interviewed by telephone about their child's symptoms of ADHD and exposure history, their family history of ADHD, and their reproductive and exposure history. Children's shed baby teeth will be analyzed for lead. Mothers will complete brief parenting scales and the Child Behavior Checklist. School records will be collected. The study goals are to identify risk factors for ADHD including preterm delivery and childhood lead exposure.
Ages Eligible for Study: | 8 Years and older |
Genders Eligible for Study: | Both |
Accepts Healthy Volunteers: | Yes |
During the first phase of the study, all children will be screened by the homeroom teacher, EXCEPT for those students in certain self-contained classrooms. Self-contained classrooms for students with an IQ less than 70 or autism will be omitted from the screening. In the second phase of the study, children designated as "LEP", or Low English Proficiency, will be excluded from the study.
Study ID Numbers: | 999997029, OH97-E-N029 |
Study First Received: | June 19, 2006 |
Last Updated: | March 5, 2008 |
ClinicalTrials.gov Identifier: | NCT00339729 |
Health Authority: | United States: Federal Government |
Children Behavior Epidemiology Lead Learning Disorder |
Signs and Symptoms Attention Deficit Disorder with Hyperactivity Mental Disorders Mental Disorders Diagnosed in Childhood Neurologic Manifestations |
Attention Deficit and Disruptive Behavior Disorders Hyperkinesis Learning Disorders Dyskinesias |
Pathologic Processes Disease Nervous System Diseases |