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Maternal weight and ethnic adjustment within a first-trimester Down syndrome and trisomy 18 screening program

1 Jan 2005

Abstract excerpt

OBJECTIVE(S): To estimate weight and ethnic group correction factors for first-trimester screening markers. METHODS: Ethnic-specific median MoM free beta hCG and pregnancy associated plasma protein A (PAPP-A) and delta nuchal translucency values were calculated for cohorts of maternal weight (20 lb each) using data from 51,206 patients undergoing first-trimester screening. False-positive rates for Down syndrome...

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PMID: 16049986
DOI: 10.1002/pd.1188

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