Figure 1A-C.

Percentage of patients who received CT scan per month of follow-up among pancreatic cancer patients aged 66 years or older, Surveillance, Epidemiology, and End Results-Medicare 1992-2005: A) for the overall cohort; B) by receipt of adjuvant therapy; and C) by length of survival. Patients who died, entered hospice, or began noncurative therapy were censored at the date of event. N represents the number of patients who survived uncensored to the end of the month.