Figure 3

Practice patterns of EBRT according to caseload of institutions or patient age. Three categories were formed based on the number of patients treated at each institution (≤10, 11–29 and ≥30 patients) (A-D) or age (<60, ≥60- < 80, and ≥80 years old) (E-H) and evaluated based on treatment intent (A, E), EBRT field size (B, F), EBRT total dose (C, G), and concurrent chemotherapy (D, H).