Using the lower limit of normal for the FEV1/FVC ratio reduces the misclassification of airway obstruction

• Published in: Thorax Vol. 63; no. 12; pp. 1046 - 1051
• Main Authors: Swanney, M P, Ruppel, G, Enright, P L, Pedersen, O F, Crapo, R O, Miller, M R, Jensen, R L, Falaschetti, E, Schouten, J P, Hankinson, J L, Stocks, J, Quanjer, P H
• Format: Journal Article
• Language: English
• Published: London BMJ Publishing Group Ltd and British Thoracic Society 01.12.2008; BMJ; BMJ Publishing Group LTD
• Subjects: Adolescent; Adult; Age; Aged; Aged, 80 and over; Airway management; Asymptomatic; Biological and medical sciences; Cardiology. Vascular system; Chronic obstructive pulmonary disease; Chronic obstructive pulmonary disease, asthma; Diagnostic Errors; Female; Forced Expiratory Volume - physiology; Health care; Health education; Health surveys; Humans; Lung diseases; Male; Medical sciences; Middle Aged; Pneumology; Practice Guidelines as Topic - standards; Predictive Value of Tests; Pulmonary Disease, Chronic Obstructive - diagnosis; Reference Values; Spirometry; Vital Capacity - physiology; Womens health; Young Adult; United Kingdom > UK; England; United States > US; Respiratory disease; Anesthesia; Airways obstruction; Ratio; Circulatory system; Limit; Cardiology; Normal

Aim:The prevalence of airway obstruction varies widely with the definition used.Objectives:To study differences in the prevalence of airway obstruction when applying four international guidelines to three population samples using four regression equations.Methods:We collected predicted values for fo...