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NCT00339729 · ClinicalTrials.gov registry record
Johnston County ADHD Study: Environmental, Reporductive, and Familial Risk Factors for Attention-Deficit Hyperactivity Disorder (ADHD)
A clinical trial, sponsored by National Institute of Environmental Health Sciences (NIEHS).
- Completed
- Registry status
- 8,000
- Enrollment target
NCT00339729 is a clinical trial that has completed, run by National Institute of Environmental Health Sciences (NIEHS). The registered enrollment target is 8,000 participants.
The verdict
NCT00339729 has completed, sponsored by National Institute of Environmental Health Sciences (NIEHS).
- COMPLETED
- Registry status
- 8,000 participants
- Enrollment target
Study 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.
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 8,000 participants |
| Start Date | 1997-05-07 |
| Est. Completion | 2007-05-24 |
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Full Details on ClinicalTrials.gov ↗What the Registry Record Tells You About NCT00339729
The ClinicalTrials.gov registry entry for NCT00339729 describes a study currently listed as completed, categorized as an unspecified phase. The registered enrollment target is 8,000 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is National Institute of Environmental Health Sciences (NIEHS), which has 145 total studies on file at ClinicalTrials.gov.
The record links to 0 conditions, and to 0 interventions.
NCT00339729 reports 0 study locations.
Frequently Asked Questions
What is clinical trial NCT00339729 about?
NCT00339729 is a clinical study titled "Johnston County ADHD Study: Environmental, Reporductive, and Familial Risk Factors for Attention-Deficit Hyperactivity Disorder (ADHD)". 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 ch...
What is the current status of trial NCT00339729?
This trial is currently completed. The enrollment target is 8,000 participants. The study started on 1997-05-07. Estimated completion is 2007-05-24.
Who is sponsoring clinical trial NCT00339729?
This trial is sponsored by National Institute of Environmental Health Sciences (NIEHS), which has 145 total clinical trials registered on ClinicalTrials.gov.
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