Marc wrote:
>
> As a part of a report
> I have to perform a meta-analysis of
> some clinical trials.
> These trials report the median effect in the
> treatment group and the median effect in the control group
> (days of hospitalization). P-values from Mann-Whitney U-Tests
> are reported and the numbers of patients in treatment
> and control.
> My Question: How can I calculate an effect size
> (eg median difference between treatment and
> control)and confidence intervals with that data?
>
You'd need raw data to calculate the effect size for Mann-Whitney test.
Regards,
Konrad
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