NCT00041834|Completed
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Sponsor study identifier
observational
N/A
0 countries
N/A
Study Start
September 2000
Date type not reportedThis date has not been verified as actual or estimated.
Primary Completion
Not reported
Date not reportedStudy Completion
August 2003
Date type not reportedThis date has not been verified as actual or estimated.
This study surveys the parents/guardians about symptoms and diagnosis of asthma in kindergarten and first-grade students in 13 schools around the city of Anchorage, Alaska. Traffic information is also measured and entered in geographical information mapping system with student's home and school locations. The study will assess whether students living in high traffic areas have greater risk of diagnosis of asthma.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
August 2003
Date type not reportedThis date has not been verified as actual or estimated.
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Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
September 2000
Date type not reportedThis date has not been verified as actual or estimated.
July 18, 2002
Actual (reported)July 22, 2002
Actual (reported)August 2003
Date type not reportedThis date has not been verified as actual or estimated.
First Submitted
July 18, 2002
First Posted
July 22, 2002
Study Start
September 2000
Date type not reportedThis date has not been verified as actual or estimated.
Study Completion
August 2003
Date type not reportedAsthma and Allergy Screening AA2000 (Cross Sectional)
Effect of Air Pollution on Long-Term Asthma Severity and Lung Function in Children
This date has not been verified as actual or estimated.
Last Updated
June 24, 2005
Record last verified: 2002-07
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Source: ClinicalTrials.gov.
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