MSTS Risk

From: Wayne Persutte (wpersutte@reprogen.com)
Tue Feb 13 12:31:09 2001


Friends,

Can anyone explain to me why a Maternal serum triple screen that provides a odds ratio of 1:1 is actually a risk of 50%? As was explained by a geneticist, a 1:1 risk means that for every one affected child there is one normal child. I find this counter-intuitive and think that this should represent a 100% risk. Does anyone else find this odd? . . . or have I been misinformed? -Wayne

--
Wayne H. Persutte, B.S., R.D.M.S.
Director of Ultrasound, Reproductive Genetics Center
Assistant Professor, Obstetrics and Gynecology
University of Colorado Health Sciences Center
Denver, Colorado
(303) 399-5393
FAX (303) 399-6190



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