Development and validation of novel nomograms to predict survival of patients with tongue squamous cell carcinoma

Figure 3 Calibration curves for 3- and 5-year overall survival and 3- and 5-year cancer-specific survival in patients with squamous cell carcinoma of the tongue. A: Calibration curves for 3-year overall survival (OS) in the training cohort; B: Calibration curves for 5-year OS in the training cohort; C: Calibration curves for 3-year OS in the validation cohort; D: Calibration curves for 5-year OS in the validation cohort; E: Calibration curves for 3-year cancer-specific survival (CSS) in the training cohort; F: Calibration curves for 5-year CSS in the training cohort; G: Calibration curves for 3-year CSS in the validation cohort; H: Calibration curves for 5-year CSS in the validation cohort. The gray line indicates perfect prediction. Blue lines indicate 95% confidence intervals (CIs). The red line indicates nomogram performance. Red and gray lines close together indicates greater nomogram accuracy.