The impact of different spirometric definitions on the prevalence of airway obstruction and their association with respiratory symptoms

[摘要] The fixed ratio criterion of forced expiratory volume in 1 s/forced vital capacity <0.70 for diagnosing airway obstruction may overdiagnose the condition, particularly in the elderly, so the lower limit of normal (LLN) is recommended as the most approp

[学科分类] 呼吸医学