Table 1. Summary of PCA for gene attributes.

Principal component	%variance explained	Significance value	Significant variable loadings
PC1	50.2	<0.001	Number of CpG	0.9
			Length mRNA	0.9
			Number of exons	0.8
PC2	26.1	<0.0001	Expression %CV	−0.6
			Methylation ratio	0.6