COPD in never smokers: Results from the population-based burden of obstructive lung disease study

Bernd Lamprecht, Mary Ann McBurnie, William M. Vollmer, Gunnar Gudmundsson, Tobias Welte, Ewa Nizankowska-Mogilnicka, Michael Studnicka, Eric Bateman, Josep M. Anto, Peter Burney, David M. Mannino, A (Sonia) Buist

Research output: Contribution to journalArticle

269 Citations (Scopus)

Abstract

Background: Never smokers comprise a substantial proportion of patients with COPD. Their characteristics and possible risk factors in this population are not yet well defined. Methods: We analyzed data from 14 countries that participated in the international, population-based Burden of Obstructive Lung Disease (BOLD) study. Participants were aged ≥ 40 years and completed postbronchodilator spirometry testing plus questionnaires about respiratory symptoms, health status, and exposure to COPD risk factors. A diagnosis of COPD was based on the postbronchodilator FEV1/FVC ratio, according to current GOLD (Global Initiative for Obstructive Lung Disease) guidelines. In addition to this, the lower limit of normal (LLN) was evaluated as an alternative threshold for the FEV1/FVC ratio. Results: Among 4,291 never smokers, 6.6% met criteria for mild (GOLD stage I) COPD, and 5.6% met criteria for moderate to very severe (GOLD stage II+) COPD. Although never smokers were less likely to have COPD and had less severe COPD than ever smokers, never smokers nonetheless comprised 23.3% (240/1,031) of those classified with GOLD stage II+ COPD. This proportion was similar, 20.5% (171/832), even when the LLN was used as a threshold for the FEV1/FVC ratio. Predictors of COPD in never smokers include age, education, occupational exposure, childhood respiratory diseases, and BMI alterations. Conclusion: This multicenter international study confirms previous evidence that never smokers comprise a substantial proportion of individuals with COPD. Our data suggest that, in addition to increased age, a prior diagnosis of asthma and, among women, lower education levels are associated with an increased risk for COPD among never smokers.

Original languageEnglish (US)
Pages (from-to)752-763
Number of pages12
JournalChest
Volume139
Issue number4
DOIs
StatePublished - Apr 2011

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Obstructive Lung Diseases
Chronic Obstructive Pulmonary Disease
Population
Education
Spirometry
Occupational Exposure
Health Status
Multicenter Studies
Asthma

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine
  • Critical Care and Intensive Care Medicine
  • Cardiology and Cardiovascular Medicine

Cite this

Lamprecht, B., McBurnie, M. A., Vollmer, W. M., Gudmundsson, G., Welte, T., Nizankowska-Mogilnicka, E., ... Buist, A. S. (2011). COPD in never smokers: Results from the population-based burden of obstructive lung disease study. Chest, 139(4), 752-763. https://doi.org/10.1378/chest.10-1253

COPD in never smokers : Results from the population-based burden of obstructive lung disease study. / Lamprecht, Bernd; McBurnie, Mary Ann; Vollmer, William M.; Gudmundsson, Gunnar; Welte, Tobias; Nizankowska-Mogilnicka, Ewa; Studnicka, Michael; Bateman, Eric; Anto, Josep M.; Burney, Peter; Mannino, David M.; Buist, A (Sonia).

In: Chest, Vol. 139, No. 4, 04.2011, p. 752-763.

Research output: Contribution to journalArticle

Lamprecht, B, McBurnie, MA, Vollmer, WM, Gudmundsson, G, Welte, T, Nizankowska-Mogilnicka, E, Studnicka, M, Bateman, E, Anto, JM, Burney, P, Mannino, DM & Buist, AS 2011, 'COPD in never smokers: Results from the population-based burden of obstructive lung disease study', Chest, vol. 139, no. 4, pp. 752-763. https://doi.org/10.1378/chest.10-1253
Lamprecht B, McBurnie MA, Vollmer WM, Gudmundsson G, Welte T, Nizankowska-Mogilnicka E et al. COPD in never smokers: Results from the population-based burden of obstructive lung disease study. Chest. 2011 Apr;139(4):752-763. https://doi.org/10.1378/chest.10-1253
Lamprecht, Bernd ; McBurnie, Mary Ann ; Vollmer, William M. ; Gudmundsson, Gunnar ; Welte, Tobias ; Nizankowska-Mogilnicka, Ewa ; Studnicka, Michael ; Bateman, Eric ; Anto, Josep M. ; Burney, Peter ; Mannino, David M. ; Buist, A (Sonia). / COPD in never smokers : Results from the population-based burden of obstructive lung disease study. In: Chest. 2011 ; Vol. 139, No. 4. pp. 752-763.
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abstract = "Background: Never smokers comprise a substantial proportion of patients with COPD. Their characteristics and possible risk factors in this population are not yet well defined. Methods: We analyzed data from 14 countries that participated in the international, population-based Burden of Obstructive Lung Disease (BOLD) study. Participants were aged ≥ 40 years and completed postbronchodilator spirometry testing plus questionnaires about respiratory symptoms, health status, and exposure to COPD risk factors. A diagnosis of COPD was based on the postbronchodilator FEV1/FVC ratio, according to current GOLD (Global Initiative for Obstructive Lung Disease) guidelines. In addition to this, the lower limit of normal (LLN) was evaluated as an alternative threshold for the FEV1/FVC ratio. Results: Among 4,291 never smokers, 6.6{\%} met criteria for mild (GOLD stage I) COPD, and 5.6{\%} met criteria for moderate to very severe (GOLD stage II+) COPD. Although never smokers were less likely to have COPD and had less severe COPD than ever smokers, never smokers nonetheless comprised 23.3{\%} (240/1,031) of those classified with GOLD stage II+ COPD. This proportion was similar, 20.5{\%} (171/832), even when the LLN was used as a threshold for the FEV1/FVC ratio. Predictors of COPD in never smokers include age, education, occupational exposure, childhood respiratory diseases, and BMI alterations. Conclusion: This multicenter international study confirms previous evidence that never smokers comprise a substantial proportion of individuals with COPD. Our data suggest that, in addition to increased age, a prior diagnosis of asthma and, among women, lower education levels are associated with an increased risk for COPD among never smokers.",
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AU - Gudmundsson, Gunnar

AU - Welte, Tobias

AU - Nizankowska-Mogilnicka, Ewa

AU - Studnicka, Michael

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AU - Buist, A (Sonia)

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N2 - Background: Never smokers comprise a substantial proportion of patients with COPD. Their characteristics and possible risk factors in this population are not yet well defined. Methods: We analyzed data from 14 countries that participated in the international, population-based Burden of Obstructive Lung Disease (BOLD) study. Participants were aged ≥ 40 years and completed postbronchodilator spirometry testing plus questionnaires about respiratory symptoms, health status, and exposure to COPD risk factors. A diagnosis of COPD was based on the postbronchodilator FEV1/FVC ratio, according to current GOLD (Global Initiative for Obstructive Lung Disease) guidelines. In addition to this, the lower limit of normal (LLN) was evaluated as an alternative threshold for the FEV1/FVC ratio. Results: Among 4,291 never smokers, 6.6% met criteria for mild (GOLD stage I) COPD, and 5.6% met criteria for moderate to very severe (GOLD stage II+) COPD. Although never smokers were less likely to have COPD and had less severe COPD than ever smokers, never smokers nonetheless comprised 23.3% (240/1,031) of those classified with GOLD stage II+ COPD. This proportion was similar, 20.5% (171/832), even when the LLN was used as a threshold for the FEV1/FVC ratio. Predictors of COPD in never smokers include age, education, occupational exposure, childhood respiratory diseases, and BMI alterations. Conclusion: This multicenter international study confirms previous evidence that never smokers comprise a substantial proportion of individuals with COPD. Our data suggest that, in addition to increased age, a prior diagnosis of asthma and, among women, lower education levels are associated with an increased risk for COPD among never smokers.

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