Case Control Studies

  • Case Control Studies


    Two-sided significance level (alpha):
    (Usually 0.05)
    Power (% chance of detecting):
    (Usually 80)
    Proportion of controls with exposure:
    (Between 0.0 and 1.0)

    Ratio of sample size, Controls / Cases:

    (For equal samples, use 1.0)

    Please fill in one of the following (leave others as zeros)

    Calculated

    Proportion of cases with exposure:
    (Between 0.0 and 1.0)
    Odds ratio  

      Kelsey Fleiss Fleiss with CC
     Sample Size - Cases:

    Sample Size - Controls
    Total sample size

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