However, when we performed further statistical analysis of the stenosis subtype in the third and fourth quartiles, we found that, when Lp-PLA2 levels were in the third and fourth quartiles, the proportion of the ICAS group was higher than that of the other three subgroups (third Q: 16[50.0%] vs. 1[3.1%] vs. 9[28.1%] vs. 6[18.8%], p = 0.002, Figure 2A; fourth Q: 15[48.4%] vs. 5[16.1%] vs. 8[25.8%] vs. 3[9.7%], p = 0.014, Figure 2B). The gene discussed is PLA2G7; the disease is familial isolated congenital asplenia.