Research Article

Immune Infiltration Represents Potential Diagnostic and Prognostic Biomarkers for Esophageal Squamous Cell Carcinoma

Figure 3

Multivariate Cox proportional hazard regression analysis and survival analysis. (a) Forest plots show significant survival-related immune cells based on multivariate Cox regression analyses. Kaplan-Meier curves for overall survival grouped by PIS in the (b) training, (c) internal validation, and (d) external validation cohorts. Note: values were calculated by log-rank test. HR: hazard ratio; CI: confidence interval; PIS: prognostic immune score. : ; : .
(a)
(b)
(c)
(d)