Fig. 1

Compared with the OSCC samples without CIMP, the samples with CIMP presented lower survival probability. a We identified the optimal cluster number as 3 via within-cluster sum of squares method. b The heatmap of DNA methylation level of clusters 1, 2, and 3. c Survival curves of clusters 1, 2, and 3. d Survival curves of samples with/without CIMP