Bilateral oophorectomy trends in Olmsted County, Minnesota, 1950-1987

L. J. Melton, E. J. Bergstralh, G. D. Malkasian, W. M. O'Fallon

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27 Scopus citations


Over the 38-year period from 1950 through 1987, 1,434 Olmsted County, Minnesota women had a first unilateral oophorectomy, while 1,828 underwent bilateral oophorectomy (including 113 with a second unilateral oophorectomy). Most procedures (61% of unilateral and 87% of bilateral oophorectomies) were in conjunction with hysterectomy, and trends over time paralleled those reported for hysterectomy. Almost half of all operations (27% of unilateral and 63% of bilateral oophorectomies) were elective. The rise in bilateral oophorectomy rates over time (3.7 per 100,000 person-years per year, P = 0.016) was mostly due to elective procedures among older women, with both an increased frequency of surgery and a shift from unilateral to bilateral oophorectomy.

Original languageEnglish (US)
Pages (from-to)149-152
Number of pages4
Issue number2
StatePublished - 1991


ASJC Scopus subject areas

  • Epidemiology

Cite this

Melton, L. J., Bergstralh, E. J., Malkasian, G. D., & O'Fallon, W. M. (1991). Bilateral oophorectomy trends in Olmsted County, Minnesota, 1950-1987. Epidemiology, 2(2), 149-152.