Abortion bans in the United States are exacerbating existing health disparities as births increase in high-risk populations and infant mortality rises disproportionately, new research suggests.

JAMA, show that states that enforced complete or near-total abortion bans after six weeks of pregnancy saw a 6% overall rise in infant death rates. That added up to 478 more infant deaths than expected based on previous trends.

Two studies found that infant mortality and births increased in most states with abortion bans after the Dobbs ruling.