Volcano plot of regression coefficient and p-values by moving trimmed mean.

<p>The x-axis is the effect size measured by regression coefficient. The y-axis is the transformed p-value by -log₁₀(); the larger transformed value, the more significance. The black dots represent each coefficient and the red lines are <i>y</i> = −log₁₀0.05: any black dot above the red line means that the coefficient is nominally significant.