New study suggests pregnant women are not at greater risk of severe Covid-19

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When researchers analysed how the disease might affect the women’s children, they found that outcomes for infants were on the whole good.

New UK research has found evidence to suggest that pregnant women do not have a greater risk of experiencing severe Covid-19 than non-pregnant women.

Carried out by researchers from the University of Oxford, in collaboration with the Royal College of Obstetricians and Gynaecologists, the Universities of Leeds and Birmingham, Kings and Imperial Colleges London, the new study looked at 427 pregnant women who were admitted to hospitals in the UK with confirmed Covid-19.

The researchers estimated that 4.9 women out of every 1,000 pregnant women were admitted to hospital with the virus, which suggests that pregnant women are not at a higher risk of experiencing severe illness.

However, they note that the majority of women who did become severely ill and needed to go to hospital were in the late second or third trimester of pregnancy, which highlights the importance of social distancing during later pregnancy.

In addition, older pregnant women who were aged 35 and over, overweight or obese women, and those who had pre-existing medical problems, such as high blood pressure and diabetes, were also more likely to be admitted to hospital with Covid-19, as were pregnant women from black and ethnic minority backgrounds, a finding which the researchers say requires urgent investigation.

When the researchers analysed how Covid-19 might affect the women’s children, they found that outcomes for infants were on the whole good.

Although one in five babies born to mothers hospitalised with Covid-19 were born premature and were admitted to a neonatal unit, less than 20 babies were born very premature, before 32 weeks.

One in 20 babies born had a positive test for Covid-19, but only half of them immediately after birth, which suggests that transmission of infection from mother to baby is low, say the authors.

However, as this is a preliminary report which has been published on medRxiv, a preprint server for health sciences, the findings have not yet been peer-reviewed, meaning it has not been verified by other experts.

Nevertheless, Chief Executive of the Royal College of Midwives Gill Walton commented on the results saying: “During this current crisis, pregnancies have continued, babies have been born, and, throughout it all, midwives have been at their side, supporting and caring for them.

“It’s absolutely vital that women continue to attend antenatal appointments to ensure that they and their babies are well. Staying in touch with their maternity services team will help put any concerns at ease and enable them to act quickly when necessary.”

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