Epidemiology
Global rates of ectopic pregnancy are 1.1% in the UK, 1.49% in Norway, and 1.62% in Australia.[10][11] In the US, trends in the rate of ectopic pregnancy among overall pregnancies in females aged 15 to 44 years have marginally increased across all age groups.[12] In 1992, 2% of reported pregnancies in the US were ectopic.[13] As clinical management is now more outpatient-based, surveillance is becoming less reliable and, therefore, national surveillance data on the incidence of ectopic pregnancy have not been updated since the 1990s.[12][13] Analysis of commercially insured women in the US between 2002-2007 found no increasing or decreasing trends in the rates of ectopic pregnancy.[14]
In the US, the ectopic pregnancy mortality ratio decreased from 1.15 to 0.50 deaths per 100,000 live births between 1980–1984 and 2003–2007.[15]
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