In the largest study of its kind internationally to date, researchers analyzed over 5000 home births with the care of Certified Professional Midwives across the US and Canada in 2000. The study compared outcomes and medical interventions between home births and low risk hospital births. The research indicated lower rates of medical intervention in the home birth group but similar intrapartum and neonatal mortality rates to that of low risk hospital births in the United States.
Not sure this is actually the same, find it later.
Citizens for Midwifery did a thing, here’s a link.
What about EBB or Lamaze? They probably have stuff.