Asthma  Smoking Cessation  COPD  Infectious Diseases  Allergic Rhinitis  Research home page  IPCRG home page

Research Needs: COPD References Introduction Outcome Measures Validity Interventions Management Diagnostic Questionnaire Follow up, assessment Testing the validity of the diagnostic questionnaire in an extended range of countries and patients A study has developed questionnaires for diagnosis of COPD but has limited validation beyond the initial study population and requires broader validation in clinical practice.