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      <marc:subfield code="a">Evans, Jessica, </marc:subfield>
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      <marc:subfield code="a">Estimating the prevalence of COPD in Canada : </marc:subfield>
      <marc:subfield code="b">reported diagnosis versus measured airflow obstruction / </marc:subfield>
      <marc:subfield code="c">by Jessica Evans, Yue Chen, Pat G. Camp, Dennis M. Bowie and Louise McRae.</marc:subfield>
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      <marc:subfield code="c">March 2014.</marc:subfield>
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      <marc:subfield code="c">©2014</marc:subfield>
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      <marc:subfield code="a">1 online resource (pages 3-11) : </marc:subfield>
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      <marc:subfield code="a">Health reports, </marc:subfield>
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      <marc:subfield code="v">v. 25, no. 3, [1]</marc:subfield>
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      <marc:subfield code="a">Issued also in French under title: Évaluation de la prévalence de la MPOC au Canada fondée sur les déclarations d'un diagnostic et sur l'obstruction des voies aériennes mesurée.</marc:subfield>
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      <marc:subfield code="a">"Component of Statistics Canada catalogue no. 82-003-X, Health Reports."</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (pages 10-11).</marc:subfield>
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      <marc:subfield code="a">"Estimates of chronic obstructive pulmonary disease (COPD) prevalence based on self-reports of a diagnosis are thought to underestimate the prevalence of COPD in Canada. Pre-bronchodilator spirometry measures were obtained from the 2007 to 2009 Canadian Health Measures Survey for 2,487 individuals aged 35 to 79. The prevalence of self-reported chronic bronchitis symptoms and self-reported diagnosis by a health care professional was compared with the prevalence of measured airflow obstruction according to seven definitions, including the Global Initiative for Obstructive Lung Disease (GOLD) criteria. …"--Abstract, page 3.</marc:subfield>
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      <marc:subfield code="t">Évaluation de la prévalence de la MPOC au Canada fondée sur les déclarations d'un diagnostic et sur l'obstruction des voies aériennes mesurée / </marc:subfield>
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      <marc:subfield code="v">v. 25, no. 3, [1].</marc:subfield>
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