Prognostic impact and reasons for variability by tumor location in gastric cancer

Figure 3 Kaplan-Meier survival curves for different locations of gastric cancer, where different colors represent different locations. Red: Lower 1/3; green: Middle 1/3; blue: Total; purple: Upper 1/3). The solid line represents the Kaplan-Meier estimates for each group. The shaded area around the survival curve represents the 95% confidence interval, representing the range of fluctuations in the true survival estimate. A P value less than 0.05 was considered to indicate statistical significance.