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Int. J. Environ. Res. Public Health 2016, 13(11), 1138; doi:10.3390/ijerph13111138

The Association between Endometriosis, Tubal Ligation, Hysterectomy and Epithelial Ovarian Cancer: Meta-Analyses

1
School of Mathematics and Statistics, Northeast Normal University, Changchun 130024, China
2
Epidemiology and Statistics, School of Public Health, Jilin University, Changchun 130021, China
*
Author to whom correspondence should be addressed.
Academic Editor: Paul B. Tchounwou
Received: 3 July 2016 / Revised: 2 November 2016 / Accepted: 10 November 2016 / Published: 14 November 2016
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Abstract

To investigate the association between endometriosis, tubal ligation, hysterectomy and epithelial ovarian cancer. Relevant published literatures were searched in PubMed, ProQuest, Web of Science and Medline databases during 1995–2016. Heterogeneity was evaluated by I2 statistic. Publication bias was tested by funnel plot and Egger’s test. Odds ratio and 95% CI were used to assess the association strength. The statistical analyses in this study were accomplished by STATA software package. A total of 40,609 cases of epithelial ovarian cancer and 368,452 controls in 38 publications were included. The result suggested that endometriosis was associated with an increased risk of epithelial ovarian cancer (OR = 1.42, 95% CI = 1.28–1.57), tubal ligation was associated with a decreased risk of epithelial ovarian cancer (OR = 0.70, 95% CI = 0.60–0.81), while hysterectomy show no relationship with epithelial ovarian cancer (OR = 0.97, 95% CI = 0.81–1.14). A stratified analysis showed there were associations between endometriosis and the increased risk of epithelial ovarian cancer for studies conducted in USA and Europe. Meanwhile, there were associations between tubal ligation and the decreased risk of epithelial ovarian cancer for studies conducted in USA, Asia, Europe and Australia. The result indicated that endometriosis was a risk factor of epithelial ovarian cancer whereas tubal ligation was a protective risk factor of epithelial ovarian cancer, hysterectomy may have no relationship with epithelial ovarian cancer. View Full-Text
Keywords: epithelial ovarian cancer; endometriosis; hysterectomy; tubal ligation; meta-analysis epithelial ovarian cancer; endometriosis; hysterectomy; tubal ligation; meta-analysis
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MDPI and ACS Style

Wang, C.; Liang, Z.; Liu, X.; Zhang, Q.; Li, S. The Association between Endometriosis, Tubal Ligation, Hysterectomy and Epithelial Ovarian Cancer: Meta-Analyses. Int. J. Environ. Res. Public Health 2016, 13, 1138.

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