[R] Comparison of demographics between 2 study samples

[C.H.]

Use a smaller alpha value rather than 0.05.

C

On Thu, Aug 14, 2008 at 10:14 AM, Mark Home <rhelpadd at sbcglobal.net> wrote:
> Dear All:
>
> I have a clinical study where I would like to compare the demographic information for 2 samples in a study.  The demographics include both categorical and continuous variables.  I would like to be able to say whether the demographics are significantly different or not.
>
> The majority of papers that I have read use multiple techniques to achieve this (e.g., t-test for the continuous variables and either Fischer exact or Chi-square for categorical).  I wonder whether this might lead to spurious differences due to multiple significance tests.  Is there a better way to do this?
>
> Thanks in advance for your advice,
>
> Mark
>
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>
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-- 
CH Chan
Research Assistant - KWH
http://www.macgrass.com