Adams C J
Am J Public Health. 1984 Nov;74(11):1267-70. doi: 10.2105/ajph.74.11.1267.
During 1982 the American College of Nurse-Midwives conducted a national survey of certified nurse-midwives residing in the United States. About 68 per cent of the 1,584 respondents (response rate 76 per cent) were practicing nurse-midwifery. Most of them were providing prenatal and family planning care. The 937 participants who were conducting deliveries reported that they conducted about 1.8 per cent of the estimated 3,704,000 deliveries which took place in the United States during 1982.
1982年期间，美国助产士学院对居住在美国的持证助产士进行了一项全国性调查。在1584名受访者中，约68%（回复率76%）从事助产工作。他们中的大多数人提供产前护理和计划生育服务。进行分娩的937名参与者报告称，他们接生的数量约占1982年美国估计370.4万例分娩总数的1.8%。
