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The measured FEV1 against age and height in males. FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity; SEA-GLI2012 and NEA-GLI2012, multi-ethnic Global Lung Initiative 2012 equations for Southeast and Northeast Asian; Chinese-ECSC1993, European Committee of Steel and Coal equations adjusted for Chinese; Asian-NHANESIII 0.88, the third National Health and Nutrition Examination Surveys equations adjusted with 0.88 times for Asian-American.
