ArticleMayo Clinic proceedings2011
Prevalence of airway obstruction assessed by lung function questionnaire.
Article in Mayo Clinic proceedings, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01013948 (Prevalence of Chronic Airway Onstruction in a Subject Population With a History of Cigarette Smoking in a Primary Care Setting), which is not on this map. Cited by 13 papers, 4 of them syntheses that pooled it.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Prevalence of Chronic Airway Onstruction in a Subject Population With a History of Cigarette Smoking in a Primary Care Setting
Who cites it
13 citing papers in PubMed, 4 syntheses or guidelines pooled it.
- Prevalence of chronic respiratory disease using case-finding tools in adults living with noncommunicable disease in low- and middle-income countries: a systematic review.BMC pulmonary medicine · 2025Pooled it
- Pooled it
- Diagnostic accuracy of screening tests for COPD: a systematic review and meta-analysis.BMJ open · 2015Pooled it
- Case finding for COPD in primary care: a systematic review.Primary care respiratory journal : journal of the General Practice Airways Group · 2012Pooled it
- Case finding for chronic obstructive pulmonary disease in primary care: a pilot randomised controlled trial.The British journal of general practice : the journal of the Royal College of General Practitioners · 2013Trial
- PUMA screening tool to detect COPD in high-risk patients in Chinese primary care-A validation study.PloS one · 2022Article
- Diagnostic accuracy of screening tools for chronic obstructive pulmonary disease in primary health care: Rapid evidence synthesis.Journal of family medicine and primary care · 2021Article
- External validation of the PUMA COPD diagnostic questionnaire in a general practice sample and the PLATINO study population.International journal of chronic obstructive pulmonary disease · 2019Article
- Prevalence of undiagnosed airflow obstruction among people with a history of smoking in a primary care setting.International journal of chronic obstructive pulmonary disease · 2016Article
- No change in prevalence of symptoms of COPD between 1996 and 2006 in Finnish adults - a report from the FinEsS Helsinki Study.European clinical respiratory journal · 2016Article
- Validity of a questionnaire-based diagnosis of chronic obstructive pulmonary disease in a general population-based study.BMC pulmonary medicine · 2014Article
- The electronic health record: is it meaningful yet?Mayo Clinic proceedings · 2011Article
- Identifying Patients with Undiagnosed COPD in Primary Care Settings: Insight from Screening Tools and Epidemiologic Studies.Chronic obstructive pulmonary diseases (Miami, Fla.)Article
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Authors and funding
14 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo estimate the prevalence of unidentified chronic obstructive pulmonary disease (COPD) and determine the screening accuracy of the Lung Function Questionnaire (LFQ). PATIENTS AND
methodsCigarette 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.
resultsOf the patients who completed the LFQ, 849 (54%) had standardized spirometry data available. On the basis of LFQ and spirometry results, the estimated prevalence of possible COPD was 17.9% (95% confidence interval, 15.3%-20.6%). At a cut point of 18 or less, sensitivity, specificity, positive predictive value, and negative predictive value of the LFQ were 88%, 25%, 21%, and 90%, respectively. Approximately 1 in 5 patients (21%) aged 30 years or older and 1 in 4 (26%) aged 50 years or older scored 18 or less on the LFQ and had a ratio of forced expiratory volume in the first second of expiration to forced vital capacity less than 0.70.
conclusionOn the basis of postbronchodilator spirometry results using weighted estimates, approximately 1 in 5 patients (21%) aged 30 years or older with a smoking history of 10 or more pack-years seen in a primary care setting is likely to have COPD. The LFQ could be a helpful COPD case-finding tool for clinicians to identify patients who need further evaluation.
trial registrationclinicaltrials.gov Identifier: NCT01013948.
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