Funnel plot analysis on the detection of the publication bias for the C677T polymorphism.

Abstract

<p>(A) Meta-analysis in a random-effects model for CT+TT <i>vs.</i> CC (dominant model). (B) Meta-analysis in a random-effects model for CT <i>vs.</i> CC. (C) Meta-analysis in a random-effects model for TT <i>vs</i>. CC. Each point represents an individual study for the indicated association. LogOR, natural logarithm of OR. Perpendicular line denotes the mean effect size.</p