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RE: st: how to pool prevalences

From   "Svend Juul" <SJ@SOCI.AU.DK>
To   <>
Subject   RE: st: how to pool prevalences
Date   Sat, 5 Nov 2005 15:58:16 +0100

B. Water wrote:
... i do use meta/metan and their ancillary do's including metacum, metainf,
etc but to my knowledge 'meta-prevalence' or even 'meta-proportion or
'meta-probability' is not one that is available (seeing that essentially
prevalence is a probability or a proportion).

It is not very clear what you mean by a meta-proportion:

a) Is it the mean prevalence in a number of descriptive studies? If yes,
how do you want to weight the contribution from the studies? If it is by
study size (N), just sum the number of cases and the Ns, and divide.
That, of course, does not deserve a specific command.

b) Is it something else?



Svend Juul
Institut for Folkesundhed, Afdeling for Epidemiologi
(Institute of Public Health, Department of Epidemiology)
Vennelyst Boulevard 6
DK-8000 Aarhus C,  Denmark
Phone, work:  +45 8942 6090
Phone, home:  +45 8693 7796
Fax:          +45 8613 1580

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