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st: Test for trend in IRRs


From   Daniel Pratt <daniel_l_pratt@yahoo.co.uk>
To   statalist@hsphsun2.harvard.edu
Subject   st: Test for trend in IRRs
Date   Tue, 2 Aug 2005 11:29:58 +0100 (BST)

Hi,

I have calculated the following IRRs for suicide in
released prisoners:

Age     IRR
18-20   5.58
21-24   5.31
25-29   7.84
30-39   9.25
40-49  13.17
50+    15.59

Is there a formal test to see if the increasing trend
in the IRRs is significant?

Many thanks,

Daniel.

Centre for Suicide Prevention
The University of Manchester
Room A3.5, Humanities Building
Devas Street
Manchester
M13 9PL
Tel:  0161 275 0722
Fax:  0161 275 0716



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