Group A

(PDR with R0 margin)

Group B

(PDR with R1 margin)

Group C

(biliary tract stenting)

Group D

(biliodigestive anastomosis)

Number

113

28

33

26

Age (years)

64.67 ± 9

64.34 ± 9

76 ± 10^a

75 ± 10^a

Sex

Male

64 (57%)

17 (61%)

17 (52%)

9 (35%)

Female

49 (43%)

11 (39%)

16 (48%)

17 (65%)

Stage

IIA

37 (33%)

12 (43%)

21 (64%)

12 (46%)

IIB

76 (67%)

16 (57%)

12 (36%)

14 (54%)

T

1

1 (1%)

0 (0%)

0 (0%)

0 (0%)

2

3 (3%)

0 (0%)

2 (6%)

0 (0%)

3

109 (96%)

28 (100%)

33 (94%)

26 (100%)