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Table 1 Descriptive data of the patients

From: Cell-free DNA promoter hypermethylation in plasma as a diagnostic marker for pancreatic adenocarcinoma

   Pancreatic cancer Control group 1 (screened negative) Control group 2 (chronic pancreatitis) Control group 3 (acute pancreatitis) Control groups 1 + 2
N   95   27   97   59   124  
Mean age (years) (range)   66 45–85 60 37–82 57 22–87 56 22–87 58 22–87
Sex (% men)   57 60 12 44.44 67 69.07 32 54.24 79 63.71
Smoking status Currently (%) 30 31.58 11 40.74 64 65.98 23 38.98 75 60.48
  Previously (%) 33 34.74 7 25.93 24 24.74 11 18.64 31 25.00
  Never (%) 30 31.58 9 33.33 9 9.28 23 38.98 18 14.52
  Unknown status (%) 2 2.11 0 0 0 0 2 3.39 0 0
AJCC/UICC staging I (IA and IB) (%) 11 11.58         
  II (IIA and IIB) (%) 29 30.53         
  III (%) 13 13.68         
  IV (%) 42 44.21