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Baby boys at higher risk of life-threatening pregnancy complications , study claims

Melbourne: New born baby boys are much more likely to experience potentially life threatening outcomes at birth than girls, a new study has revealed. According to a researchers at University of Adelaide in Australia and

India TV News Desk India TV News Desk Published on: July 12, 2016 18:00 IST
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Representative Image

Melbourne: New born baby boys are much more likely to experience potentially life threatening outcomes at birth than girls, a new study has revealed.

According to a researchers at  University of Adelaide in Australia and the University of Groningen in The Netherlands, new born boys are at higher risk of being born spontaneously premature, while their mothers are at greater risk of gestational diabetes and pre- eclampsia.

The study, examined  data of more than 574,000 births in South Australia over a 30-year period (1981 to 2011), to confirm the presence of differences in birth outcomes based on the sex of the baby.

The team of researchers evaluated the relationship between the babies' sex and adverse outcomes, such as pre-term birth, pregnancy-induced high blood pressure disorders, and gestational diabetes mellitus.

"The major conclusion of our study is that the evidence is there and it is very clear: the sex of the baby has a direct association with pregnancy outcomes," said Claire Roberts, professor at the University of Adelaide.

The study found that boys are more likely to be born spontaneously pre-term.

Boys showed a 27 per cent higher risk for a pre-term birth between 20-24 weeks' gestation, 24 per cent higher risk for a pre-term birth between 30-33 weeks, and 17 per cent higher risk for pre-term birth between 34-36 weeks, researchers said.

Mothers carrying boys were 4 per cent more likely to suffer gestational diabetes and 7.5 per cent more likely to suffer pre-eclampsia at term - a potentially dangerous pregnancy complication characterised by high blood pressure and a large amount of protein in the urine.

However, pregnant women carrying a girl have a 22 per cent higher risk for early onset pre-eclampsia requiring a pre-term delivery.

"Our results indicate there may be a need for specific interventions tailored to male and female babies, to prevent adverse outcomes for both child and mother," said Petra Verburg from the University of Groningen.

"We're investigating other factors that may predict pregnancy complications, taking foetal sex into account," added Verburg.

Researchers have previously published on sex differences in the expression of 142 genes in the placenta from normal pregnancies.

"The placenta is critical for pregnancy success. We believe that sex differences in placental function may explain the differences we're seeing in outcomes for newborn boys and girls, and their mothers," said Roberts.

The research appears in in the journal PLOS One.

(With Agency input) 

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