COVID-19 vaccination during pregnancy not linked to complications at birth: US study

Leroy Leo, Reuters

<p>COVID-19 vaccination during pregnancy was not associated with preterm delivery or underweight newborns, in a study published by the U.S. Centers for Disease Control and Prevention (CDC) on Tuesday.</p><p>Rates of preterm birth were 4.9% among more than 10,000 women who received at least one dose of a COVID-19 vaccine, compared to 7.0% for roughly 36,000 unvaccinated women, researchers said on Tuesday in The CDC's Morbidity and Mortality Weekly Report. </p><p> The difference was not deemed to be statistically significant.</p><p>In addition, COVID-19 vaccination did not increase the risk of delivering a baby who weighed less than usual for the number of weeks of pregnancy, the researchers found.</p><p>Results from the study support the CDC's recommendation on the safety of COVID-19 vaccination during pregnancy.</p><p>"Evidence of the benefits of COVID-19 vaccination during pregnancy continues to accrue, including the detection of antibodies in cord blood," the researchers wrote, noting that pregnant women with COVID-19 have increased risks for intensive care unit admission, need for mechanical ventilation and death.</p><p>The women in the study had become pregnant between May and October of 2020, before vaccines were available.</p><p>Nearly all who were vaccinated got the shots in their second or third trimester of pregnancy. Some 96% of them had received at least one dose of an mRNA vaccine from either Pfizer Inc and BioNTech or Moderna Inc . The remaining women received the single-shot vaccine from Johnson & Johnson.</p><p>There was no difference in outcomes based on the timing of vaccination, or on which mRNA vaccine was received or how many doses.</p><figure class='op-interactive'><iframe height='315' src='https://www.youtube.com/embed/tByxqwg1IVw?enablejsapi=1' width='560'></iframe></figure><div class='iwantbar'>Watch more in <a href='//www.iwantv.com.ph/'>iWantv</a> or <a href='//tfc.tv/'>TFC.tv</a></div><p>The data were drawn from eight healthcare organizations in six U.S. states, the report said.</p><p>The researchers noted that because they reviewed data collected for other purposes, they may have missed some vaccinations, and they lacked information on women's previous history of birth-related complications. The study also lacked information on first-trimester vaccinations and on boosters, which were not available at the time.</p><figure class='op-interactive'><iframe height='315' src='https://www.youtube.com/embed/MVoehV83RkU?enablejsapi=1' width='560'></iframe></figure><div class='iwantbar'>Watch more in <a href='//www.iwantv.com.ph/'>iWantv</a> or <a href='//tfc.tv/'>TFC.tv</a></div>

<p>Results from the study support the CDC's recommendation on the safety of COVID-19 vaccination during pregnancy.</p><p>"Evidence of the benefits of COVID-19 vaccination during pregnancy continues to accrue, including the detection of antibodies in cord blood," the researchers wrote, noting that pregnant women with COVID-19 have increased risks for intensive care unit admission, need for mechanical ventilation and death.</p><p>The women in the study had become pregnant between May and October of 2020, before vaccines were available.</p><p>Nearly all who were vaccinated got the shots in their second or third trimester of pregnancy. Some 96% of them had received at least one dose of an mRNA vaccine from either Pfizer Inc and BioNTech or Moderna Inc . The remaining women received the single-shot vaccine from Johnson & Johnson.</p><p>There was no difference in outcomes based on the timing of vaccination, or on which mRNA vaccine was received or how many doses.</p><figure class='op-interactive'><iframe height='315' src='https://www.youtube.com/embed/tByxqwg1IVw?enablejsapi=1' width='560'></iframe></figure><div class='iwantbar'>Watch more in <a href='//www.iwantv.com.ph/'>iWantv</a> or <a href='//tfc.tv/'>TFC.tv</a></div><p>The data were drawn from eight healthcare organizations in six U.S. states, the report said.</p><p>The researchers noted that because they reviewed data collected for other purposes, they may have missed some vaccinations, and they lacked information on women's previous history of birth-related complications. The study also lacked information on first-trimester vaccinations and on boosters, which were not available at the time.</p><figure class='op-interactive'><iframe height='315' src='https://www.youtube.com/embed/MVoehV83RkU?enablejsapi=1' width='560'></iframe></figure><div class='iwantbar'>Watch more in <a href='//www.iwantv.com.ph/'>iWantv</a> or <a href='//tfc.tv/'>TFC.tv</a></div>

<p> The difference was not deemed to be statistically significant.</p><p>In addition, COVID-19 vaccination did not increase the risk of delivering a baby who weighed less than usual for the number of weeks of pregnancy, the researchers found.</p>

<p>COVID-19 vaccination during pregnancy was not associated with preterm delivery or underweight newborns, in a study published by the U.S. Centers for Disease Control and Prevention (CDC) on Tuesday.</p><p>Rates of preterm birth were 4.9% among more than 10,000 women who received at least one dose of a COVID-19 vaccine, compared to 7.0% for roughly 36,000 unvaccinated women, researchers said on Tuesday in The CDC's Morbidity and Mortality Weekly Report. </p>

COVID-19 vaccination during pregnancy was not associated with preterm delivery or underweight newborns, a CDC study said Tuesday.

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COVID-19 vaccination during pregnancy not linked to complications at birth: US study

COVID-19 vaccination during pregnancy not linked to complications at birth: US study