hi
i have the following table and want to calculate the hazard ratio
(preferebly) or odds ratio
24 26 28 30 32 34 36 38 40 44
birth 79 53 68 132 190 369 1012 4132 14717 9942 30694
misc 8 6 14 11 18 23 64 214 720 478 1556
term 10 10 6 14 24 55 116 391 1320 799 2745
bb 33 18 21 28 51 121 420 2377 8561 4451 16081
The reference group is birth and the baseline would be 24 can anyone help -
i have this in an excel sheet
there should be an increasing hazard over time of delivery - i have look at
doing this in spss, using survival analysis but so far no luck
regards
ann
------------
Ann E Fitzmaurice
Dugald Baird Centre for Research on
Women's Health
Department of Obstetrics and Gynaecology (University
of Aberdeen)
Aberdeen Maternity Hospital
Cornhill Road
Aberdeen AB25 2ZL
Scotland, UK.
Tel. + 44 1224 553876
Fax: +44 1224 404925
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