R help - Oct 2010 - Computing a Mantel-Haenszel chi-square using a continuous variable as the matching criterion

Dear list

I would like to compute a Mantel-Haenszel chi-square in which the matching
variable is a continuous variable. The MH chi-square is used to assess the
relationship between two categorical variables at each level or strata defined
by a third variable. Specifically I would like to know if there is a
straightforward way to divide the matching variable into levels, in which each
level has a minimum of 20 cases. Any information would be greatly appreciated.

Thanks in advance

Barth


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On Oct 7, 2010, at 2:21 PM, Barth B. Riley wrote:
> Dear list
>
> I would like to compute a Mantel-Haenszel chi-square in which the  
> matching variable is a continuous variable. The MH chi-square is  
> used to assess the relationship between two categorical variables at  
> each level or strata defined by a third variable. Specifically I  
> would like to know if there is a straightforward way to divide the  
> matching variable into levels, in which each level has a minimum of  
> 20 cases. Any information would be greatly appreciated.
Why? What makes you think matching would be valuable? (...or even  
valid, for that matter.)

>
> Thanks in advance
>
> Barth
-- 

David Winsemius, MD
West Hartford, CT