Race-ethnicity-specific variation in multiple-marker biochemical screening: Alpha-fetoprotein, hCG, and Estriol

Abstract excerpt

OBJECTIVE: To identify any race-ethnicity-specific differences in serum alpha-fetoprotein (AFP), hCG, and unconjugated estriol (E3) levels in women between 14 and 21 weeks' gestation. METHODS: Data from the 3-year period 1992-1994 were analyzed from 208,257 women who had AFP screening, of whom 155,142 also had hCG and 62,121 also had E3 screened, between 14 and 21 weeks' gestation. Subjects were categorized into...

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