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BMC Cancer. 2018 Oct 25;18(1):1039. doi: 10.1186/s12885-018-4970-9.

Long-term mortality among women with epithelial ovarian cancer: a population-based study in British Columbia, Canada.

Author information

1
Department of Obstetrics & Gynecology, University of British Columbia, Vancouver, BC, Canada.
2
Centre for Health Services and Policy Research, School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.
3
Department of Obstetrics & Gynecology, University of British Columbia, Vancouver, BC, Canada. Gillian.hanley@vch.ca.
4
Diamond Health Care Center, Vancouver General Hospital, 6207A 2775 Laurel St., Vancouver, BC, V5Z 1M9, Canada. Gillian.hanley@vch.ca.

Abstract

OBJECTIVES:

Among women with epithelial ovarian cancer (EOC), histotype is one of the major prognostic factors. However, few data are available on histotype- specific survival and mortality estimates among these patients. We therefore examined survival and causes of death among women with EOC by histotype.

METHODS:

A population- based cohort including all ovarian cancer patients diagnosed in British Columbia (BC) between 1990 and 2014 was built using population-based administrative datasets. We compared causes of death within histotypes, by age at diagnosis, BRCA status, and time since diagnosis.

RESULTS:

A total of 6975 women were identified as having been diagnosed with EOC between 1990 and 2014 in BC. The most common cause of death among these women was ovarian cancer until 10 years post diagnosis when other causes surpassed ovarian cancer as the leading cause of death. Among women with serous EOCs, ovarian cancer was the leading cause of death 12 years after diagnosis, whereas ovarian cancer was the leading cause of death for 8 years among women with non- serous EOCs. Among women with serous EOCs, ovarian cancer was the leading cause of death for 12 years among younger women (< 60 years of age) compared to 8 years among women > = 60 years of age, and those with BRCA mutations were more likely to die from ovarian cancer than those without a BRCA mutation.

CONCLUSIONS:

Within 10 years from diagnosis, ovarian cancer is the leading cause of death among women diagnosed with EOC.

KEYWORDS:

Histotype; Mortality; Ovarian Cancer; Survival

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