I've seen it reported recently that both infant and maternal mortality has gone up in states that have outlawed abortion. Even if the doctor forecasts that the pregnancy will be a risk to the mother or infant, they don't want to be second-guessed after the fact and prosecuted for performing the abortion.
The variations don’t seem to follow any rhyme or reason. Adjacent red and blue states do similarly (Idaho/Oregon, Minnesota/Iowa, Utah/Colorado). But North Dakota and South Dakota are quite different. Many states do worse (MD/VA) do worse than poorer ones (Oregon).