Fig. 4: Gene ontology (GO) and Kyoto Encyclopaedia of Genes and Genomes (KEGG) enrichment analyses for genes annotated to CpGs with a p < 1.0 × 10−5 and enriched trait associations in the EWAS Atlas for the individual CpGs.

The size of the points reflects the number of differentially methylated genes associated with each term (panel a and b) or the number of CpGs identified for this phenotype in the EWAS Atlas (panel c). The colour gradient reflects the association strength. The y-axis shows −log10(p-values). The dotted line corresponds to p = 0.05 and p-values were derived from a hypergeometric test implemented in the missMethyl R package. TNFR2 tumour necrosis factor receptor 2, GGT Gamma−glutamyl transferase (GGT), eGFR estimated glomerular filtration rate, TEA Trait enrichment analysis, P phosphorus.