PLS-DA plot of plasma metabolic profiles obtained for patients and controls with prediction for QCs.

<p>▵ - small AAA, ▴ – large AAA, □ – control, + - Quality control Panel A shows PLS-DA model (R² = 0.852, Q² = 0.369) for all samples and all variables in three groups under investigation (A, S, and C). Panel B shows prediction for QC samples by the model obtained.