Contributions of variables (markers) to the first and second principal components (PC1 and PC2) in principal component analysis of 35 autistic and 38 healthy control subjects.

Data were collected for a set of 7 markers; PE, PS, PC, MAP2K1, IL-10, IL-12, and NF-κB (set 1). Separation between autistic and control groups was mostly on PC2 coordinate. The most discriminatory variables are shown in boldface. The portion of variance explained by each principal component is shown between parentheses. * indicates a statistically significant principal component.