Zheng-ming Lei, Bin Zeng, Lina Wu, Q. Deng, D. Guo
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Free triiodothyronine and free thyroxine hormone levels in relation to breast cancer risk: a meta-analysis.
INTRODUCTION
The conflict between breast cancer (BC) and thyroid hormone (TH) has been studied for years. The purpose of the study was to summarise and analyse the available data on the relationship between TH and BC.
MATERIAL AND METHODS
The PubMed, EMBASE, Cochrane Library, and Google Scholar databases were searched to identify relevant studies. The mean difference (MD) with 95% confidence interval (CI) were calculated by fixed or random effects models to assess the effect sizes.
RESULTS
Thirteen eligible studies with 5957 participants were included in the meta-analysis. The result of this study indicates that there is a significant risk relationship between BC and thyroid hormones [free triiodothyronine (FT3): MD = 1.01 pmol/L, 95% CI: 0.32-1.70, free thyroxine (FT4): MD = 0.26 ng/dL, 95% CI: 0.13-0.38].
CONCLUSIONS
Compared with healthy controls, the positive risk of FT3 and FT4 is higher in BC.
期刊介绍:
"Endokrynologia Polska" publishes papers in English on all aspects of clinical and experimental endocrinology. The following types of papers may be submitted for publication: original articles, reviews, case reports, postgraduate education, letters to the Editor (Readers’ Forum) and announcements of scientific meetings, conferences and congresses.