Study: War of the Sexes may begin in Womb
TEL AVIV, Israel (UPI) -- The battle of the sexes may begin in the womb, researchers at Tel Aviv University say. The researchers analyzed the incidence of complications, such as respiratory distress syndrome, found in pre-term twins. When born prematurely, girls who share the womb with a boy twin lost the respiratory health advantage normally seen in premature girl infants, the researchers discovered. "The male disadvantage, the study suggests, seems to be transferred from the boy to the girl in utero," Brian Reichman, a lecturer in pediatrics at Tel Aviv University's Sackler School of Medicine said in a statement. The study, published in the journal Pediatrics, found compared to premature twin boys, premature twin girls had a 60 percent advantage. The premature twin girls tended not to develop respiratory distress syndrome and chronic lung diseases sometimes found in premature infants. This advantage was lost in infant girls with a male twin. Reichman helped analyze the data collected by the Israel Neonatal Network comprising 8,858 very low birth weight infants -- 1 to 3 pounds -- born prematurely at 24 to 34 weeks' gestation. The study data covered infants born between 1995 and 2003 and included singletons, same-sex and mixed-sex pre-term twins. Copyright 2008 by United Press International
TEL AVIV, Israel (UPI) -- The battle of the sexes may begin in the womb, researchers at Tel Aviv University say. The researchers analyzed the incidence of complications, such as respiratory distress syndrome, found in pre-term twins. When born prematurely, girls who share the womb with a boy twin lost the respiratory health advantage normally seen in premature girl infants, the researchers discovered. "The male disadvantage, the study suggests, seems to be transferred from the boy to the girl in utero," Brian Reichman, a lecturer in pediatrics at Tel Aviv University's Sackler School of Medicine said in a statement. The study, published in the journal Pediatrics, found compared to premature twin boys, premature twin girls had a 60 percent advantage. The premature twin girls tended not to develop respiratory distress syndrome and chronic lung diseases sometimes found in premature infants. This advantage was lost in infant girls with a male twin. Reichman helped analyze the data collected by the Israel Neonatal Network comprising 8,858 very low birth weight infants -- 1 to 3 pounds -- born prematurely at 24 to 34 weeks' gestation. The study data covered infants born between 1995 and 2003 and included singletons, same-sex and mixed-sex pre-term twins. Copyright 2008 by United Press International
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