ObjectiveThe Centers for Disease Control and Prevention last estimated a national ectopic pregnancy rate in 1992, when it was 1.97 percent of all reported pregnancies. Since then rates have been reported among privately insured women and regional healthcare provider populations, ranging from 1.6 to 2.45 percent. This study assessed the rate of ectopic pregnancy among Medicaid beneficiaries (New York, California, and Illinois, 2000–03), a previously unstudied population.
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