unit 1 pt 2 - Evolving field of epidemiology: the...

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1 Epidemiology Recent developments Chief Causes of Death in the U.S. -- 1900 1. Pneumonia/influenza 2. Tuberculosis 3. Heart disease 4. Stroke 5. Diarrhea/enteritis 6. Nephritis Chief Causes of Death in the U.S. -- 1998 1. Heart disease 2. Cancer 3. Stroke 4. Chronic lung disease 5. Injuries and accidents 6. Pneumonia and influenza What are some reasons for the epidemiologic transition? Aging of society – people living longer Industrialization Advent of antibiotics Others? Evolving field of epidemiology: the epidemiologic transition 1940s controlled clinical trial of streptomycin to treat Tuberculosis 1950 Doll and Hill: Used a case-control design to describe and test the association between smoking and lung cancer 1950 Francis et al: Field trial of the poliomyelitis vaccine in school children 1947 Dawber et al: Used a cohort design to study risk factors for cardiovascular disease in the Framingham Heart Study. Development of computers and associated software facilitate the management of large datasets including epidemiologic data History of Epidemiology:
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unit 1 pt 2 - Evolving field of epidemiology: the...

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