Figure 3
From: Highly frequent PIK3CA amplification is associated with poor prognosis in gastric cancer
Effect of residual tumor after surgery on poor survival in gastric cancer. Clinical outcome was evaluated according to the presence of residual tumor after surgery in a number of gastric cancers. Kaplan-Meier survival curves show that the patients with residual tumor after surgery had significantly shorter survival times than the patients without residual tumor (P = 0.01). +, the patients with residual tumor after surgery; -, the patients without residual tumor after surgery.