- Neurological diseases
- Mental diseases
- Cohort study
Background: The effects of oophorectomy on brain aging remain uncertain. Methods: We conducted a cohort study with long-term follow-up of women in Olmsted County, Minn., USA, who underwent either unilateral or bilateral oophorectomy before the onset of menopause from 1950 through 1987. Each member of the oophorectomy cohort was matched by age to a referent woman from the same population who had not undergone any oophorectomy. We studied underlying and contributory causes of death in 1,274 women with unilateral oophorectomy, 1,091 women with bilateral oophorectomy, and 2,383 referent women. Results: Mortality for neurological or mental diseases was increased in women who underwent bilateral oophorectomy before age 45 years compared with referent women (hazard ratio = 5.24; 95% confidence interval = 2.02–13.6; p < 0.001). Within this age stratum, mortality was similar in women who were or were not treated with estrogen from the time of oophorectomy through age 45 years, and in women who had bilateral oophorectomy for prophylaxis or for treatment of a benign ovarian condition. Mortality was also increased in women who underwent unilateral oophorectomy before age 45 years without concurrent hysterectomy. Conclusions: Bilateral oophorectomy performed before age 45 years is associated with increased mortality for neurological or mental diseases.
Copyright © 2009 S. Karger AG, Basel
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Dr. Walter A. Rocca
Division of Epidemiology, Department of Health Sciences Research, Mayo Clinic
200 First Street SW
Rochester, MN 55905 (USA)
Tel. +1 507 284 3568; Fax +1 507 284 1516; E-Mail firstname.lastname@example.org
Received: August 2, 2008
Accepted: February 1, 2009
Published online: April 8, 2009
Number of Print Pages : 9
Number of Figures : 1, Number of Tables : 3, Number of References : 38
Vol. 33, No. 1, Year 2009 (Cover Date: May 2009)
Journal Editor: Feigin V.L. (Auckland)
ISSN: 0251-5350 (Print), eISSN: 1423-0208 (Online)
For additional information: http://www.karger.com/NED
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