[R] questions about meta-analysis

[Thomas Lumley]

On Sat, 27 Jun 2009, Emmanuel Charpentier wrote:

> Le samedi 27 juin 2009 à 13:02 +0800, sdzhangping a écrit :
>> Dear R users:
>> 
>> In the example of meta-analysis (cochrane, package rmeta), I can not
>> found the p-value of Test for overall effect, and some other indices
>> (Z, I, weight and et al).  How can I get the these indices listed? 
>
>Another (smarter(?)) alternative is to ask yourself *why* you need Z and
>p. Z is just a computing device allowing you to use a known density. And
>the real meaning of p and its usefulness has been discussed, disputed
>and fought over at exceedingly large lengths in the past 80 years.

The $MHtest component of the object (for Mantel-Haenszel) or $test component otherwise, has the test statistic and p-value.

      -thomas


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Thomas Lumley			Assoc. Professor, Biostatistics
tlumley at u.washington.edu	University of Washington, Seattle