Expansion of the COPD At-risk Module in 4 States BRFSS Telephone Health Surveys

Clinical trial NCT02991391 · COMPLETED

Trial details

NCT number: NCT02991391
Sponsor: Duke University
Status: COMPLETED
Study type: OBSERVATIONAL

COPD Respiratory Symptoms Tobacco Use Asthma Disparities Air Quality

Start date: 2015-01-01
Primary completion: 2015-12-01
Enrollment: 40690

View on ClinicalTrials.gov

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