Endometriosis and the subsequent risk of epithelial ovarian cancer

Bibliographic Details
Title: Endometriosis and the subsequent risk of epithelial ovarian cancer
Authors: Wen-Hsun Chang, Kuan-Chin Wang, Wen-Ling Lee, Nicole Huang, Yiing-Jeng Chou, Rung-Chuang Feng, Ming-Shyen Yen, Ben-Shian Huang, Chao-Yu Guo, Peng-Hui Wang
Source: Taiwanese Journal of Obstetrics & Gynecology, Vol 53, Iss 4, Pp 530-535 (2014)
Publisher Information: Elsevier, 2014.
Publication Year: 2014
Collection: LCC:Gynecology and obstetrics
Subject Terms: Cohort study, Endometriosis, Epithelial ovarian cancer, Risk, Surgical diagnosis, Gynecology and obstetrics, RG1-991
More Details: Objective: There is a possible correlation between endometriosis and an increased risk of epithelial ovarian cancer (EOC), but many uncertainties remain, including race, exposure or surveillance time, and surgical confirmation. Therefore, we carried out a large-scale, nationwide, controlled cohort study in the Taiwanese women to respond to these uncertainties. Materials and methods: A historical cohort study was performed by linking the National Health Insurance Research Database of Taiwan. Each patient diagnosed with endometriosis (n = 7537) between 2000 and 2009 was background matched with up to two women without endometriosis (n = 15,074). The total was 136,643 person-years of follow-up and 24 women having new EOC. Cox regression analysis was used to determine the relationship between the EOC incidence rate and an endometriosis status. Results: The EOC incidence rate of the endometriosis and non-endometriosis women was 3.31 per 10,000 person-years and 0.99 per 10,000 person-years, respectively, contributing to an adjusted hazard ratio (HR) of 3.28 (95% confidence interval, 1.37–7.85). The women with surgical confirmation had a much higher adjusted HR (3.87; 95% confidence interval, 1.58–9.47). No significantly statistical difference of surveillance time between women with and without endometriosis (3.87 years vs. 3.73 years). The occurrence of EOC was not also affected by exposure time of women with endometriosis. Conclusion: Taiwanese women with endometriosis really had a risk of newly developed EOC, especially those who had a surgical diagnosis, and this three-fold increase of risk was neither influenced by exposure time nor biased by surveillance.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1028-4559
91546818
Relation: http://www.sciencedirect.com/science/article/pii/S1028455914001843; https://doaj.org/toc/1028-4559
DOI: 10.1016/j.tjog.2014.04.025
Access URL: https://doaj.org/article/871dea74d915468189e629f6048c56cc
Accession Number: edsdoj.871dea74d915468189e629f6048c56cc
Database: Directory of Open Access Journals
More Details
ISSN:10284559
91546818
DOI:10.1016/j.tjog.2014.04.025
Published in:Taiwanese Journal of Obstetrics & Gynecology
Language:English