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ABSTRACT: Background
Many published studies have estimated the association between the +331G/A (rs10895068) polymorphism in the progesterone receptor (PgR) gene and breast cancer risk. However, the results remain inconsistent and controversial. To address this inconsistency, we systematically interrogated the aforementioned association via a meta-analysis.Methods
Through a literature search, we identified 13 case-control studies, including 12,453 cases and 14,056 case-free controls. The strengths of reported associations were evaluated using odds ratios (ORs) with 95% confidence intervals (95%CIs).Results
An association was found between +331G/A polymorphism and +331G/A risk in the dominant model (p = 0.027). Via subgroup analysis, we found no association between +331G/A and breast cancer risk in Caucasians, Asians or mixed racial groups.Conclusions
Through meta-analysis, we were able to gain insight into previously reported associations between +331G/A polymorphism and breast cancer risk. However, further studies are still needed to provide more evidence.
SUBMITTER: Qi XL
PROVIDER: S-EPMC5661922 | biostudies-literature | 2017 Oct
REPOSITORIES: biostudies-literature
Qi Xing-Ling XL Yao Jun J Zhang Yong Y
BMC medical genetics 20171030 1
<h4>Background</h4>Many published studies have estimated the association between the +331G/A (rs10895068) polymorphism in the progesterone receptor (PgR) gene and breast cancer risk. However, the results remain inconsistent and controversial. To address this inconsistency, we systematically interrogated the aforementioned association via a meta-analysis.<h4>Methods</h4>Through a literature search, we identified 13 case-control studies, including 12,453 cases and 14,056 case-free controls. The st ...[more]