Johnston County ADHD Study: Environmental, Reporductive, and Familial Risk Factors for Attention-Deficit Hyperactivity Disorder (ADHD)

This study has been completed.
Sponsor:
Information provided by:
National Institutes of Health Clinical Center (CC)
ClinicalTrials.gov Identifier:
NCT00339729
First received: June 19, 2006
Last updated: March 17, 2011
Last verified: May 2007
  Purpose

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
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)

Resource links provided by NLM:


Further study details as provided by National Institutes of Health Clinical Center (CC):

Estimated Enrollment: 8000
Study Start Date: May 1997
Estimated Study Completion Date: May 2007
Detailed Description:

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.

  Eligibility

Ages Eligible for Study:   8 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Criteria
  • INCLUSION CRITERIA:

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.

  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00339729

Locations
United States, North Carolina
NIEHS, Research Triangle Park
Research Triangle Park, North Carolina, United States, 27709
Sponsors and Collaborators
  More Information

No publications provided

ClinicalTrials.gov Identifier: NCT00339729     History of Changes
Other Study ID Numbers: 999997029, OH97-E-N029
Study First Received: June 19, 2006
Last Updated: March 17, 2011
Health Authority: United States: Federal Government

Keywords provided by National Institutes of Health Clinical Center (CC):
Children
Behavior
Epidemiology
Lead
Learning Disorder

Additional relevant MeSH terms:
Attention Deficit Disorder with Hyperactivity
Disease
Hyperkinesis
Attention Deficit and Disruptive Behavior Disorders
Dyskinesias
Mental Disorders
Mental Disorders Diagnosed in Childhood
Nervous System Diseases
Neurologic Manifestations
Pathologic Processes
Signs and Symptoms

ClinicalTrials.gov processed this record on October 20, 2014