Abstract
In an analysis of data gathered from routine maternal serum α-fetoprotein screening, we determined that the sex of the fetus is significantly correlated with differences in maternal serum α-fetoprotein concentration during the second trimester of pregnancy. Between the fifteenth and nineteenth gestational weeks, the mean maternal serum α-fetoprotein level is significantly higher to the male fetus than for the female fetus. There was no difference, however, in the rate of increase in maternal serum α-fetoprotein concentration with time between male and female fetuses during the weeks of gestation that were studied. No apparent cause for these observations has been demonstrated.
Original language | English (US) |
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Pages (from-to) | 786-789 |
Number of pages | 4 |
Journal | American Journal of Obstetrics and Gynecology |
Volume | 146 |
Issue number | 7 |
DOIs | |
State | Published - Jan 1 1983 |
ASJC Scopus subject areas
- Obstetrics and Gynecology