Nomogram for Predicting the Relationship between the Extent of Visceral Pleural Invasion and Survival in Non-Small-Cell Lung Cancer

Figure 4

Kaplan–Meier curve analysis in both groups. (a) Risk classification of patient survival with the different degrees of VPI in the training group (log-rank value for trend <0.0001). (b) Risk classification of patient survival with the different degrees of VPI in the validation group (log-rank value for trend <0.0001). Abbreviation: VPI, visceral pleural invasion.

(a)

(b)