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Thread: Comparative study

  1. #1
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    Smile Comparative study




    Im doing comparative study of Kidney disease and Dermatoglyphics. There is a Continuous variable (ridge count) i am assessing
    Confounding factors is sex

    Cases (Female 90, Male 180)
    Control group 1 (Female 90, Male 90)
    Control Group 2 (Female 90, Male 90)

    Is it OK to use 180 Male or do i need to reduce it to 90

    Please advice


    Buddhika

  2. #2
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    Re: Comparative study

    ridge count sounds like it is a count, not a continuous variable?


    Are cases and controls matched? It is fine to have imbalanced sample sizes. Are you going to pool the controls or why do you have 2 groups?
    Stop cowardice, ban guns!

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    Re: Comparative study


    Are you going to pool the controls or why do you have 2 groups?

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