Fig. 4

Kaplan–Meier survival curves categorized into low-risk and high-risk groups. Kaplan–Meier survival curves of OS in a training, b SEER internal validation; c TCGA validation; d Chinese multicenter validation set; e entire cohort of enrolled ACC patients. OS overall survival, ACC adrenocortical carcinoma, SEER the Surveillance Epidemiology, and End Results database, TCGA the Cancer Genome Atlas set