Underdiagnosis of chronic obstructive pulmonary disease (COPD) is widespread. Early detection of COPD may improve the outcome by timely smoking cessation, a change in lifestyle, and treatment with an inhaled bronchodilator (BD). The objective of this study was to evaluate the diagnostic role of BD reversibility testing in early COPD case finding.
General practitioners (n=241) consecutively recruited subjects aged =35 years with relevant exposure (history of smoking, and/or occupational exposure) and at least one respiratory symptom. Information on age, smoking status, body mass index, dyspnea score (Medical Research Council scale), and spirometry was obtained. Individuals with airway obstruction (forced expiratory volume in one second [FEV1]/forced vital capacity [FVC] 0.20 L and >12%. Asthma and COPD were, respectively, defined as an FEV1 increase >0.50 L and a post-BD FEV1/FVC
Notes
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