Epidemiology In 2001, respiratory diseases was No 1 reason for mortality in china Urban Area No, 4(13.36%) Rural Area No. 1(22.46%) The morbidity of COPD, ALl, lung cancer, tuberculosis keeps increasing The burden of chronic respiratory diseases remains in high level New contagious respiratory diseases(SARS, bird flu) 复旦大学附属中山医院 呼吸科暨呼吸病研究所 上海市重点学• In 2001, respiratory diseases was No 1 reason for mortality in China Urban Area No.4（13.36%） Rural Area No.1（22.46%） • The morbidity of COPD，ALI，lung cancer, tuberculosis keeps increasing • The burden of chronic respiratory diseases remains in high level • New contagious respiratory diseases (SARS, bird flu) Epidemiology