To investigate the relationship between the expressions of the four Co-DEGs (ASS1, HDAC2, SIRT3, and VEGFA) and the incidence of OSA and NAFLD, we generated ROC curves of these genes in datasets GSE38792 and GSE89632 and presented the findings (Figures 7A–H). Here, VEGFA is linked to metabolic dysfunction-associated steatotic liver disease.