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

Attention-Deficit Hyperactivity Disorder Clinical Trial

Official title:

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

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT00339729
• Other study ID #: 999997029
• Secondary ID: OH97-E-N029
• Status: Completed
• Phase: N/A
• First received: June 19, 2006
• Last updated: June 30, 2017
• Start date: May 7, 1997
• Est. completion date: May 24, 2007

Study information

• Verified date: May 24, 2007
• Source: National Institutes of Health Clinical Center (CC)
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

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.

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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 8000
• Est. completion date: May 24, 2007
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 8 Years and older

Eligibility

• 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.

Related Conditions & MeSH terms

• Attention Deficit Disorder with Hyperactivity
• Attention-Deficit Hyperactivity Disorder
• Disease
• Hyperkinesis

Locations

Country	Name	City	State
United States	NIEHS, Research Triangle Park	Research Triangle Park	North Carolina

Sponsors (1)

Lead Sponsor	Collaborator
National Institute of Environmental Health Sciences (NIEHS)

Country where clinical trial is conducted

United States,