Figure 4. Confirmation of the signature stratified by different clinical factors in the GEO and TCGA cohorts. Kaplan–Meier survival for OS in subgroups stratified by stage I,II (A) stage III (B) age≤60 (C) age > 60 (D) grade 1,2 (E) grade 3 (F) in the GEO cohort, and stage I,II (G) stage III (H) T1,2(I) T3,4(J) age≤60 (K) age > 60 (L) in the TCGA cohort.