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Table 5 Response rates and correlation with survival according to CT scans and CA 19-9.

From: Long term survivors with metastatic pancreatic adenocarcinoma treated with gemcitabine: a retrospective analysis

  Responses (%) Median OS responders Median OS
Non-responders
p value
CT scans 5 (25%) 24 mo 18.8 mo 0.66
CA 19-9 12 (63%) 20.5 mo 26.9 mo 0.45
  1. CT scans = Computerized Tomography scans; Median OS = Median Overall Survival; mo = months. CT scan responses are based on modified WHO criteria. CA 19-9 responses were determined by a 50% drop in the baseline CA19-9 value. p value = level of significance.