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Re: risk for down syndrome From: Doc Gyneco (jmbr@wanadoo.fr) Fri Nov 29 16:19:14 2002 Messages sorted by: [ date ][ thread ][ subject ][ author ] Next message: Doc Gyneco: "Re: Nasal bones on line" Previous message: nikolaev vladimir: "hydrocephalic_twin" In reply to: Patrizia: "risk for down syndrome" Next in thread: R L Meisel: "Re: risk for down syndrome" Reply: R L Meisel: "Re: risk for down syndrome" le 29/11/02 9:22, Patrizia : > the question is: do you know how to calculate the sequential risk? You need the likelihood ratio from NT, first trimester serum screening and second trimester serum screening. To respect the BAYES' rule, you have to multiply the pre test risk (1:411) by the 3 likelihood ratios to calculate the post-test risk. -- Bien tropicalement, Dr J-M BRIDERON (MD) Gyn-Obs ECHOLIST : liste de diffusion sur l'echographie gyn-obs http://www.gyneweb.fr/echolist.htm Next message: Doc Gyneco: "Re: Nasal bones on line" Previous message: nikolaev vladimir: "hydrocephalic_twin" In reply to: Patrizia: "risk for down syndrome" Next in thread: R L Meisel: "Re: risk for down syndrome" Reply: R L Meisel: "Re: risk for down syndrome"

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