期刊
BRITISH JOURNAL OF CANCER
卷 113, 期 11, 页码 1622-1631出版社
SPRINGERNATURE
DOI: 10.1038/bjc.2015.377
关键词
epithelial ovarian cancer; menopausal hormone therapy; survival; oral contraceptives; parity
类别
资金
- European Commission (DG-SANCO)
- International Agency for Research on Cancer
- Danish Cancer Society (Denmark)
- Ligue Contre le Cancer, Institut Gustave Roussy, Mutuelle Generale de l'Education Nationale, Institut National de la Sante et de la Recherche Medicale (INSERM) (France)
- German Cancer Aid
- German Cancer Research Center (DKFZ)
- Federal Ministry of Education and Research (BMBF)
- Deutsche Krebshilfe
- Deutsches Krebsforschungszentrum
- Federal Ministry of Education and Research (Germany)
- Hellenic Health Foundation (Greece)
- Associazione Italiana per la Ricerca sul Cancro-AIRC-Italy
- National Research Council (Italy)
- Dutch Ministry of Public Health, Welfare and Sports (VWS)
- Netherlands Cancer Registry (NKR)
- LK Research Funds
- Dutch Prevention Funds
- Dutch ZON (Zorg Onderzoek Nederland)
- World Cancer Research Fund (WCRF)
- Statistics Netherlands (The Netherlands)
- Nordic Center of Excellence programme on Food, Nutrition and Health. (Norway)
- Health Research Fund (FIS) [PI13/00061, PI13/01162]
- Regional Governments of Andalucia
- Asturias
- Basque Country
- Murcia
- Navarra
- ISCIII RETIC [RD06/0020]
- Swedish Cancer Society
- Swedish Research Council
- County Councils of Skane
- Vasterbotten (Sweden)
- Cancer Research UK [14136, C570/A16491, C8221/A19170]
- Medical Research Council (United Kingdom) [1000143, MR/M012190/1]
- [ERC-2009-AdG 232997]
- Cancer Research UK [14136, 16491] Funding Source: researchfish
- Medical Research Council [MC_U106179471, G0401527, G1000143, MC_UU_12015/1] Funding Source: researchfish
- National Institute for Health Research [NF-SI-0512-10135, NF-SI-0512-10114] Funding Source: researchfish
- MRC [MC_UU_12015/1] Funding Source: UKRI
Background: Reproductive factors influence the risk of developing epithelial ovarian cancer (EOC), but little is known about their association with survival. We tested whether prediagnostic reproductive factors influenced EOC-specific survival among 1025 invasive EOC cases identified in the European Prospective Investigation into Cancer and Nutrition (EPIC) study, which included 521 330 total participants (approximately 370 000 women) aged 25-70 years at recruitment from 1992 to 2000. Methods: Information on reproductive characteristics was collected at recruitment. Cox proportional hazards regression models were used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs), and multivariable models were adjusted for age and year of diagnosis, body mass index, tumour stage, smoking status and stratified by study centre. Results: After a mean follow-up of 3.6 years (+/- 3.2 s.d.) following EOC diagnosis, 511 (49.9%) of the 1025 women died from EOC. We observed a suggestive survival advantage in menopausal hormone therapy (MHT) users (ever vs never use, HR = 0.80, 95% CI = 0.62-1.03) and a significant survival benefit in long-term MHT users (>= 5 years use vs never use, HR = 0.70, 95% CI = 0.50-0.99, P-trend = 0.04). We observed similar results for MHT use when restricting to serous cases. Other reproductive factors, including parity, breastfeeding, oral contraceptive use and age at menarche or menopause, were not associated with EOC-specific mortality risk. Conclusions: Further studies are warranted to investigate the possible improvement in EOC survival in MHT users.
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