参考文献

[1]A Dictionary of Epidemiology by Last，John M.（EDT）/ Spasoff，Robert A. （EDT）/ Harris，Susan S.（EDT）/ Thuriaux，Michel C.（EDT）/ International Epide-miological Association（COR）4TH. Oxford Unviersity Press，2001

[2]MacMahon B，Pugh TF. Epidemiology，principles and methods. Little，Brown and Company，Boston，1970

[3]姜庆五主编. 流行病学基础. 上海：复旦大学出版社，2002. 8

[4]科研中国（科研网）http：//www. sciei. com

[5]Jouven X，Empana JP，Schwartz PJ，Desnos M，Courbon D，Ducimetiere P.Heart-rate profile during exercise as a predictor of sudden death. N Engl J Med. 2005 May 12；352（19）：1951～8

[6]Hu FB，Willett WC，Li T，Stampfer MJ，Colditz GA，Manson JE，Adiposity as compared with physical activity in predicting mortality among women. N Engl J Med. 2004 Dec 23；351（26）：2694～703

[7]Celli BR，Cote CG，Marin JM，Casanova C，Montes de Oca M，Mendez RA et al. The body-mass index，airflow obstruction，dyspnea，and exercise capacity index in chronic obstructive pulmonary disease. N Engl J Med. 2004 Mar 4；350（10）：1005～12