Bilateral oophorectomy trends in Olmsted County, Minnesota, 1950-1987.
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.
Department of Health Sciences Research, Mayo Clinic and Foundation, Rochester, MN 55905.
L J
LJ
Melton
E J
EJ
Bergstralh
G D
GD
Malkasian
W M
WM
O'Fallon
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D007044:Hysterectomy / Q000706:statistics & numerical data / Q000639:trends; D008875:Middle Aged; D008910:Minnesota / Q000453:epidemiology; D010052:Ovariectomy / Q000706:statistics & numerical data / Q000639:trends*