Postponed pregnancies or changes in access to contraceptives could have influenced 2021 birth rates, 과 “2020 was such a weird year,” 그녀가 말했다.
“I’m always a little bit skeptical of just one year [of data]. But in this case, I really would need to see what happens in 2022 to try to suggest that that’s any kind of a rebound or trend.”
While birth rates rose for white and Hispanic women in 2021, they dropped for Black, Asian and American Indian women.
사무용 겉옷, rates of c-sections — including those for low-risk deliveries — continued upward trends. Nearly a third (32%) of all deliveries and more than a quarter (26%) of low-risk deliveries were c-sections.
Preterm birth rates also increased in 2021. 약 10.5% of infants were born at less than 37 weeks gestation, the highest that rate has been since at least 2007.
Rates of c-section and preterm birth were disproportionately high for Black women, the provisional data shows.
“When a pregnant person is under stress, that can lead to an increase in preterm births. And clearly, there was a lot of stress in 2020 and 2021,” Jarosz said.
약간 연구 has also linked Covid-19 infection during pregnancy to a higher risk of preterm birth
Teen birth rates reached another record low nationwide, 약 14 births for every 1,000 females age 15 ...에 19.
But birth rates rose for all age groups 25 그리고 위로 — especially among those ages 35 ...에 39. The average age of mothers at time of birth has been on the rise for at least a decade. And although the average age of mothers is not yet available for 2021, preliminary data show that more than half of births were among mothers who were 30 이상, ~에서 49% 에 2020.