Pandemic Lockdowns Linked to Decline in US Twin Births, Study SuggestsReduced access to infertility treatments early in the pandemic may have contributed to a drop in twin births, data from the U.S. Centers for Disease Control and Prevention (CDC) suggest.
The number of twin births fell 7 percent between 2019 and 2020—from 120,291 to 112,437—compared to an average 2 percent-per-year decline from 2014 to 2019, researchers reported on Wednesday in the CDC's National Vital Statistics Reports, based on data from 50 states and the District of Columbia.
The twin birth rate dropped 3 percent between 2019 and 2020, from 32.1 to 31.1 per 1,000 births, versus an average annual decline of 1 percent from 2014–2019, the researchers said.
The largest declines were in November and December of 2020 and January 2021, when twin birth rates dropped by 10 percent, 14 percent, and 7 percent, respectively, compared to the year before....
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