Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 1 of 1
Full-Text Articles in Environmental Public Health
Development Of The Lung Function Questionnaire (Lfq) To Identify Airflow Obstruction, Barbara P. Yawn, Douglas W. Mapel, David M. Mannino, Fernando J. Martinez, James F. Donohue, Nicola A. Hanania, Mark Kosinski, Regina Rendas-Baum, Matthew Mintz, Steven Samuels, Anand A. Dalal
Development Of The Lung Function Questionnaire (Lfq) To Identify Airflow Obstruction, Barbara P. Yawn, Douglas W. Mapel, David M. Mannino, Fernando J. Martinez, James F. Donohue, Nicola A. Hanania, Mark Kosinski, Regina Rendas-Baum, Matthew Mintz, Steven Samuels, Anand A. Dalal
David M. Mannino
Objective:
To describe the item-selection and item-reduction for the Lung Function Questionnaire (LFQ), being developed to help clinicians identify patients appropriate for diagnostic evaluation for chronic obstructive pulmonary disease (COPD) using spirometry.
Methods:
Item selection and reduction were based on information from 387 ≥40-year-old respondents to the third National Health and Nutrition Examination Survey who had self-reported chronic bronchitis. Item reduction involved stepwise logistic regression. The accuracy of the final subset of items for identifying individuals with airflow obstruction (forced expiratory volume in one second/forced vital capacity <0.70) versus those without it was assessed with receiver operating characteristic analysis. Content and face validity were assessed using focus groups of primary care physicians (n = 16) and interviews with COPD patients (n = 16).
Results:
The model with all five items (age; smoking history; the presence of …
0.70)>