Table 4. Ratio metafeatures clustered with NFT count.

Metafeature(Gene Symbol.Probe Set ID)	Correlation Coefficient
ICA1.207949_s_at/RUNX2.216994_s_at	−0.78797
TSPAN9.220968_s_at/NRG1.206343_s_at	−0.87831
PTMS.218044_x_at/GRPEL1.212434_at	−0.87839
ITGB8.205816_at/ABAT.209460_at	−0.87857

Metafeatures are ordered by Spearman’s rank correlation with NFT count. Genes in boldface indicate that they were previously discussed in [5] and genes with underlined boldface represent the cases for which the gene has been discussed in the context of AD in the published literature.