Figure 6. Construction and verification of nomogram. (A) Nomogram construction based on the risk score and ESCA-related clinical parameters in the TCGA-ESCA cohort. (B) Calibration plots of the nomogram in the TCGA-ESCA cohort. (C) C-index curves of the nomogram in the TCGA-ESCA cohort. (D) Nomogram construction based on the risk score and ESCA-related clinical parameters in the GSE53624 cohort. (E) Calibration plots of the nomogram in the GSE53624 cohort. (F) C-index curves of the nomogram in the GSE53624 cohort. *P < 0.05; **P < 0.01; ***P < 0.001.