Journal article

A minimum estimate of the prevalence of 22q11 deletion syndrome and other chromosome abnormalities in a combined prenatal and postnatal cohort

L Hui, A Poulton, E Kluckow, A Lindquist, B Hutchinson, MD Pertile, L Bonacquisto, L Gugasyan, A Kulkarni, J Harraway, A Howden, R McCoy, FDS Costa, M Menezes, R Palma-Dias, D Nisbet, N Martin, M Bethune, Z Poulakis, J Halliday

Human Reproduction | OXFORD UNIV PRESS | Published : 2020

Abstract

STUDY QUESTION: What is the frequency of major chromosome abnormalities in a population-based diagnostic data set of genomic tests performed on miscarriage, fetal and infant samples in a state with >73 000 annual births? SUMMARY ANSWER: The overall frequency of major chromosome abnormalities in the entire cohort was 28.2% (2493/8826), with a significant decrease in the detection of major chromosome abnormalities with later developmental stage, from 50.9% to 21.3% to 15.6% of tests in the miscarriage, prenatal and postnatal cohorts, respectively. WHAT IS KNOWN ALREADY: Over the past decade, technological advances have revolutionized genomic testing at every stage of reproduction. Chromosomal ..

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