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Worse survival after breast cancer in women with anorexia nervosa
Danish Canc Soc, Res Ctr, Copenhagen, Denmark..
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, University Hospital.ORCID iD: 0000-0002-8692-3652
Finnish Canc Registry, Inst Stat & Epidemiol Canc Res, Helsinki, Finland.;Univ Tampere, Fac Social Sci, Tampere, Finland..
Karolinska Inst, Karolinska Univ Hosp, Dept Med Solna, Clin Epidemiol Unit, Stockholm, Sweden..
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2018 (English)In: Breast Cancer Research and Treatment, ISSN 0167-6806, E-ISSN 1573-7217, Vol. 168, no 2, p. 495-500Article in journal (Refereed) Published
Abstract [en]

A history of anorexia nervosa has been associated with a reduced risk of developing breast cancer. We investigated survival after breast cancer among women with a prior anorexia nervosa diagnosis compared with women in a population comparison group. This register-based study included combined data from Sweden, Denmark and Finland. A total of 76 and 1462 breast cancer cases identified among 22,654 women with anorexia nervosa and 224,619 women in a population comparison group, respectively, were included in the study. Hazard ratios (HR) for overall and breast cancer-specific mortality after breast cancer diagnosis were estimated using Cox regression. Cause of death was available only for Swedish and Danish women; therefore, the analysis on breast cancer-specific mortality was restricted to these women. We observed 23 deaths after breast cancer among anorexia nervosa patients and 247 among population comparisons. The overall mortality after the breast cancer diagnosis was increased in women with a history of anorexia nervosa compared with population comparisons (HR 2.5, 95% CI 1.6-3.9) after adjustment for age, period and extent of disease. Results were similar for overall (HR 2.3, 95% CI 1.4-3.6) and breast cancer-specific mortality (HR 2.1, 95% CI 1.3-3.6) among Swedish and Danish women. We found that female breast cancer patients with a prior diagnosis of anorexia nervosa have a worse survival compared with other breast cancer patients.

Place, publisher, year, edition, pages
SPRINGER , 2018. Vol. 168, no 2, p. 495-500
Keywords [en]
Anorexia nervosa, Breast cancer, Survival, Epidemiology
National Category
Cancer and Oncology
Identifiers
URN: urn:nbn:se:uu:diva-350273DOI: 10.1007/s10549-017-4618-5ISI: 000426778200021PubMedID: 29235044OAI: oai:DiVA.org:uu-350273DiVA, id: diva2:1205395
Available from: 2018-05-14 Created: 2018-05-14 Last updated: 2018-05-14Bibliographically approved

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