In the year and a half following the Supreme Court Dobbs decision that revoked the federal right to an abortion, hundreds more infants died than expected in the United States, new research shows. The vast majority of those infants had congenital anomalies, or birth defects.

Earlier research – spurred by a CNN investigative report - found that infant mortality spiked in Texas after a 6-week abortion ban took effect in 2021, and experts say the new data suggests that the impacts of the bans and restrictions enacted by some states post-Dobbs have been large enough to affect broader trends.

“This is evidence of a national ripple effect, regardless of state-level status,” said Dr. Parvati Singh, an assistant professor of epidemiology with The Ohio State University College of Public Health and lead author of the new study.