highly significantp = 5.7∗10 −14
While the LDA approach did not yield any significant improvement in discriminatory power compared to the original MS-SS (AUC = 0.72, DeLong's test p = 0.49), the application of PCA to the combined dataset resulted in a first principal component (PC1) that demonstrated a highly significant elevation in MS cases compared to controls (p = 5.7∗10 −14 ).