The diagnostic performance of the four feature genes was shown by their capacity to distinguish AAA from the control group, with the area under the ROC curve (AUC) values of 0.971 (95% CI 0.928–0.996) in AHR (Fig. 6A), 0.953 (95% CI 0.900–0.989) in APLNR (Fig. 6B), 0.910 (95% CI 0.802–0.990) in ITGA10 (Fig. 6C), and 0.987 (95% CI 0.964–1.000) in NR2F6 (Fig. 6D). The gene discussed is AHR; the disease is triple-A syndrome.