Kaplan-Meier curves for patients in the validation cohorts.

<p>The expression of VAG predicts poor recurrence-free survival in breast, colon, and lung cancers. Red curves are for VAG-positive patients while blue curves are for VAG-negative patients. VAG-positive patients were defined as those having a risk score greater than the group median. <i>P</i>-values were calculated by log-rank tests for the differences in survival between VAG-positive and -negative groups.