• Pulmonary Department, Zhongshan Hospital, Fudan University. Shanghai, 200032, China;
ZHU Lei, Email: tfzhu@126.com
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Objective To investigate the impact of using low limit of normal( LLN) for FEV1 /FVC ratio and fixed ratio ( 70% ) as cut-off point in the qualitative diagnosis on the prevalence of chronic obstructive pulmonary disease( COPD) . Methods An epidemiological study was carried out in preoperative patients who received pulmonary function test in Zhongshan hospital fromNovember 6, 2007 to December 30, 2007. 339 patients were enrolled and diagnosed as COPD by different diagnostic criteria as follows: ①GOLD criteria; ②FEV1 /FVC

Citation: ZHOU Yingying,LIU Li,HU Lijuan,LI Li,ZHU Lei,NIU Shanfu.. mpact of Using Different FEV1 /FVC as Cut-off Point in the Qualitative Diagnosis on the Prevalence of Chronic Obstructive Pulmonary Disease. Chinese Journal of Respiratory and Critical Care Medicine, 2009, 09(1): 16-19. doi: Copy

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