Forest plot of the overall risk of cervical cancer associated with the <i>MTHFR C677T</i> polymorphism.

<p>Significant association was found between the <i>MTHFR C677T</i> polymorphism and cervical cancer risk in recessive genetic model. A, T vs. C; B, TT vs. CC; C, dominant genetic model; D, recessive genetic model. Error bars indicate 95% CI. Solid squares represent each study in the meta-analysis. Solid diamonds represent pooled OR.