Register for Placenta Previa More Common with Birth of Male Babies
ObstetricsJanuary 25, 2001
(NewsRx.com & NewsRx.net) -- The findings of a study by researchers in Canada suggest risk of placenta previa is higher in women who are pregnant with male babies.
S.W. Wen and colleagues with Health Canada investigated the relationship between male sex at birth and placenta previa. The researchers calculated and compared the ratio of male births to female births among pregnancies with and without placenta previa.
"The male-to-female ratio at birth was higher in pregnancies complicated by a placenta previa (1.19) than in those without it (1.04; P<0.02)," they wrote.
The higher ratio of male births with placenta previa continued even after using stratified and multiple logistic regression analyses to account for the confounding and/or modifying variables of maternal age, infant birthweight and gestational age.
The findings of Wen et al. were published in Paediatric and Perinatal Epidemiology ("Placenta praevia and male sex at birth: Results from a population-based study," Paediat Perinat Epidemiol, 2000;14(4):300-304).
The corresponding author is S.W. Wen, Health Canada, Lab. Center Disease Control, Bur. Reproduction & Child Health, Tunneys Pasture A-L 0701D, Ottawa, Ontario K1A 0L2, Canada.
This article was prepared by Women's Health Weekly editors from staff and other reports.
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