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Show the mathematical relationship between Relative Risk and Difference in

  1. Nov 2, 2012 #1
    Smoker Non-smoker
    Disease A B
    No disease C D

    Show the mathematical relationship between Relative Risk and Difference in Conditional Proportions. (Work the formulas algebraically so RR is on one side of the equation and the difference (plus some other values that can be calculated using A, B, C, and D) are on the other.)

    I'm totally stuck on finding the relationship, RR and Diff are easy enough to find, but I'm not sure what other values to include to find a meaningful relationship between the 2.
     
  2. jcsd
  3. Nov 2, 2012 #2

    haruspex

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    Please post what you have for RR and Diff, preferably with working.
     
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