What are the key differences between certified nurse-midwives and other types of midwives according to Hilary Erickson?

Certified Nurse-Midwives (CNMs) are registered nurses who have completed additional training in midwifery and passed a national exam administered by the American College of Nurse-Midwives. They provide a full range of primary care services to women, including well-woman care, family planning, gynecological care, and care during pregnancy, labor, and delivery. They can also prescribe medication in most states and are trained to assess babies as well. CNMs can deliver in hospitals or birth centers, and in some states, they may also do home births.

On the other hand, Certified Professional Midwives (CPMs) and Direct-Entry Midwives have different training paths and may not have a nursing background. CPMs are trained in midwifery through various sources, including apprenticeship, self-study, or a midwifery school, and must meet the standards set by the North American Registry of Midwives. Direct-Entry Midwives enter the profession directly after completing a midwifery education program. Both these types of midwives usually deliver in homes or birth centers.

Lay Midwives are those who have learned through apprenticeship or self-study and do not have formal training or licensure. They usually deliver in homes.

It's important to note that the type of midwife you choose will likely be based on your personal preferences and the availability of midwives in your area.