ну скажем так... 1. unassisted childbirth/ и 2. planned homebirth with a midwife
это две разные вещи.
Второе - легальная практика для акушерки, которая даже оплачивается определёнными иншуэрэнсами
http://www.medicalnewstoday.com/articles/162421.php
published in CMAJ (Canadian Medical Association Journal).
The study looked at 2889 home births attended by regulated midwives in British Columbia, Canada, and 4752 planned hospital births attended by the same cohort of midwives compared with 5331 physician-attended births in hospital.
Women who planned a home birth had a significantly lower risk of obstetric interventions and adverse outcomes, including augmentation of labour, electronic fetal monitoring, epidural analgesia, assisted vaginal delivery, cesarean section, hemorrhage, and infection.
Women planning birth at home experienced reduced risk for all obstetric interventions measured, and similar or reduced risk for adverse maternal outcomes," writes Dr. Patricia Janssen from the University of British Columbia and coauthors.
Newborns born after planned home births were at similar or reduced risk of death, although the likelihood of admission to hospital was higher.