Ann E Fitzmaurice
Medical Statistician
University of Aberdeen
Department of Obstetrics & Gynaecology
Aberdeen Maternity Hospital
Cornhill Road, Aberdeen. AB25 2ZL
Tel: +44 (0) 1224 553876
Fax: +44 (0) 1224 553708
e-mail: [email protected]
http://www.abdn.ac.uk/dugaldbairdcentre/
hi
I have data on 400000 persons and 50000 of them have been pregnant
I can aggregate the file to count the number pregnant within each age
group and hence work out a rate (no pregnant/total number in that age
group)*1000
I would then merge the rates back into the original file (if necessary)
It has been suggested that I model the rate and adjust the rate for the
persons deprivation status using poisson regression with a cluster of
region, I think this would make it multilevel model poisson regression
Is this possible in stata and how would I be able to measure the
variation between clusters
Any help much appreciated
Regards
ann
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