The findings showed the highest mortality occurred among infants who were Black, lived in Southern states or had fetal birth defects.

But the effects — sampled from more than a dozen states that had abortion bans — aren’t felt evenly, according to studies published in JAMA Thursday. Start the day smarter.

Increases in infant mortality have been found in U.S. states that enacted abortion bans or severe restrictions after the Supreme Court overturned the landmark ruling that guaranteed a right to the procedure,