Lecture15 - GEM2900: Understanding Uncertainty &...

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Unformatted text preview: GEM2900: Understanding Uncertainty & Statistical Thinking DSAP, NUS, Semester 1, 2008/2009 – 1 GEM2900: Understanding Uncertainty & Statistical Thinking Berwin Turlach [email protected] Department of Statistics and Applied Probability National University of Singapore More about screening tests GEM2900: Understanding Uncertainty & Statistical Thinking DSAP, NUS, Semester 1, 2008/2009 – 121 When are screening tests useful? Who should participate? squaresolid Should one screen for diseases for which there is no effective treatment? squaresolid With transmittable diseases (AIDS, TB, SARS, etc.) they can help contain the spread of the disease, i.e., reduce the prevalence . squaresolid Screening for non-transmittable diseases (mammography for breast cancer, PSA test for prostate cancer, etc.) does not reduce prevalence but can only reduce mortality : square When to start screening? square What are the costs of false positive results?...
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This note was uploaded on 03/19/2012 for the course SCIENCE 2900 taught by Professor Forgot during the Spring '08 term at National University of Singapore.

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Lecture15 - GEM2900: Understanding Uncertainty &...

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