Issy Bray's Outputs (4)

Estimating the spontaneous loss of Down syndrome fetuses between the times of chorionic villus sampling, amniocentesis and livebirth (1998)
Journal Article

Recent publications concerning the prevalence of Down syndrome at times of chorionic villus sampling (CVS), amniocentesis and livebirth were reviewed with particular interest in estimates of spontaneous loss of Down syndrome fetuses during pregnancy.... Read More about Estimating the spontaneous loss of Down syndrome fetuses between the times of chorionic villus sampling, amniocentesis and livebirth.

Modelling the prevalence of Down syndrome with applications of Markov chain Monte Carlo methods (1998)
Thesis

Application of Markov chain Monte Carlo methods to modelling birth prevalence of Down syndrome (1998)
Journal Article

Data collected before the routine application of prenatal screening are of unique value in estimating the natural live-birth prevalence of Down syndrome. However, much of these data are from births from over 20 years ago and they are of uncertain qua... Read More about Application of Markov chain Monte Carlo methods to modelling birth prevalence of Down syndrome.

Joint estimation of Down syndrome risk and ascertainment rates: A meta-analysis of nine published data sets (1998)
Journal Article

In this paper we present an analysis of nine data sets in which ascertainment and maternal age risk of Down syndrome are estimated jointly using maximum likelihood. We include data on 4825 Down syndrome cases from nine previously published data sets.... Read More about Joint estimation of Down syndrome risk and ascertainment rates: A meta-analysis of nine published data sets.