Prevalence of airway obstruction assessed by lung function questionnaire.

ABSTRACT:

Objective

To estimate the prevalence of unidentified chronic obstructive pulmonary disease (COPD) and determine the screening accuracy of the Lung Function Questionnaire (LFQ).

Patients and methods

Cigarette smokers who had a smoking history of 10 or more pack-years and were aged 30 years or older were recruited from 36 centers from February 18, 2009, to May 29, 2009. A total of 1575 patients completed a Web-based survey including the 5-item LFQ. Spirometry was performed on patients with an LFQ total score of 18 or less and on a subset scoring more than 18. The primary outcome was the proportion of patients at risk of airflow obstruction as measured by the LFQ (score, ≤ 18) in whom an airflow obstruction was confirmed by spirometry.

Results

Of the patients who complet

SUBMITTER: Mintz ML 

PROVIDER: S-EPMC3084639 | biostudies-literature | 2011 May

REPOSITORIES: biostudies-literature