A meta-analysis was performed to assess the association between the transcription factor 7-like 2 (TCF7L2) gene polymorphism rs7903146 (IVS3C>T) and gestational diabetes mellitus (GDM). A comprehensive search was conducted to identify all case-control or cohort design studies of the above-mentioned associations. The fixed or random effect pooled measure was selected on the basis of homogeneity test among studies. Heterogeneity among studies was evaluated using the I2. Meta-regression was used to explore the potential sources of between-study heterogeneity. Publication bias was estimated using Egger's linear regression test. A total of 10 studies including 3404 cases and 6473 controls were involved in this meta-analysis. Overall, after excluding articles that deviated from HWE in controls, and further the key contributors to between-study heterogeneity, significant associations between TCF7L2 rs7903146 genetic polymorphism and risk of gestational diabetes mellitus were observed in the dominant (OR 1.653, 95% CI 1.416-1.930) and codominant (OR 1.525, 95% CI 1.350-1.723) models. The meta-analysis suggests that TCF7L2 rs7903146 genetic polymorphism was associated with increased risk of gestational diabetes mellitus. © 2013 Informa UK Ltd.
CITATION STYLE
Kang, S., Xie, Z., & Zhang, D. (2013). Association of the rs7903146 polymorphism in transcription factor 7-like 2 (TCF7L2) gene with gestational diabetes mellitus: A meta-analysis. Gynecological Endocrinology, 29(10), 873–877. https://doi.org/10.3109/09513590.2013.813469
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