Equipping the American Joint Committee on Cancer Staging for Resectable Pancreatic Ductal Adenocarcinoma with Tumor Grade: A Novel Staging System

Figure 4

Kaplan-Meier curves showed the response to chemotherapy classified by the novel staging system (stages IA-IIA (a) and stages IIB-III (b)), and the 8th AJCC staging system (stages IA-IIA (c) and stage IIB-III (d)) in the external validation set. Survival curves of the training set and internal validation set are not shown as there was a lack of chemotherapy information in the SEER database.

(a)

(b)

(c)

(d)