PRENATAL DIAGNOSIS RESULTS 2013-2019 PUBLICATIONS FROM THE VICTORIAN PRENATAL DIAGNOSIS DATA COLLECTION 12 The Annual report on Prenatal Diagnostic testing in Victoria, 2019 | 2 This report is produced by the Reproductive Epidemiology group in the Genetics theme at the MCRI. [...] The Annual report on Prenatal Diagnostic testing in Victoria, 2019 | 4 Trends in the uptake of prenatal diagnostic procedures In 2019, 1614 women < 25 weeks’ gestation underwent a prenatal diagnostic procedure, representing 2.1% of total births in Victoria. [...] The Annual report on Prenatal Diagnostic testing in Victoria, 2019 | 6 Percentage of prenatal diagnostic tests Single gene conditions Although the number of prenatal diagnostic procedures for the most common single gene conditions has remained relatively consistent over the past 6 years, the number of conditions for which testing is provided has increased from 36 in 2014 to 82 in 2019. [...] The Annual report on Prenatal Diagnostic testing in Victoria, 2019 | 9 Percentage of all prenatal diagnostic tests Diagnostic yield by indication The diagnostic yield is the percentage of women with a major chromosome condition confirmed on diagnostic testing as a proportion of total tests. [...] The Annual report on Prenatal Diagnostic testing in Victoria, 2019 | 10 Prenatal diagnosis of chromosome conditions 2013-2019 Over the past 7 years the annual number of major chromosome conditions has remained relatively consistent, despite the decline in overall prenatal diagnostic testing numbers (table 2).
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