Furthermore, the ROC analysis revealed that the areas under the curve (AUCs) for s-CSF2-Ab vs. AIS, s-CSF2pep-Ab vs. AIS, and s-CSF2pep-Ab vs. TIA were 0.576, 0.658, and 0.647, respectively (Figures 2C–E), suggesting that the s-CSF2pep-Ab level was more closely associated with AIS than the s-CSF2-Ab level. This evidence concerns the gene CSF2 and transient ischemic attack.