Table 1 Characteristics of the patients

Age, years, median (range)

60 (37,83)

60 (37,80)

61 (38,83)

0.516

BMI, median (range)

23.3 (12.4,32.1)

22.3 (15.5,29)

23.5 (12.4,32.1)

0.039

Sex, n (%)

0.002

 Female

106 (41.7%)

27 (28.7%)

79 (49.4%)

 Male

148 (58.5%)

67 (71.3%)

81 (50.9%)

Smoking history, n (%)

93 (36.8%)

46 (48.9%)

47 (29.6%)

0.002

Drinking history, n (%)

49 (19.4%)

21 (22.3%)

28 (17.7%)

0.370

Diabetes history, n (%)

65 (25.7%)

7 (7.4%)

58 (36.5%)

< 0.001

Hypertension history, n (%)

70 (27.7%)

19 (20.2%)

51 (32.1%)

0.042

Allergic history, n (%)

33 (13%)

7 (7.4%)

26 (16.4%)

0.042

Abdominal pain, n (%)

174 (69.9%)

69 (74.2%)

105 (67.3%)

0.252

Back pain, n (%)

38 (15.3%)

17 (18.3%)

21 (13.5%)

0.306

Anorexia, n (%)

10 (4%)

2 (2.2%)

8 (5.1%)

0.329

Loss of appetite, n (%)

106 (42.6%)

37 (39.8%)

69 (44.2%)

0.493

Loss of weight, n (%)

154 (61.8%)

50 (53.8%)

104 (66.7%)

0.043

CA199, n (%)

0.383

 Normal

51 (21.9%)

22 (24.7%)

29 (20.1%)

 37–1000

147 (63.1%)

57 (64%)

90 (62.5%)

  > 1000

35 (15%)

10 (11.2%)

25 (17.4%)

Surgical procedure, n (%)

0.932

 Whipple

192 (75.9%)

73 (77.7%)

119 (74.8%)

 Distal

52 (20.6%)

18 (19.1%)

34 (21.4%)

 Other

9 (3.6%)

3 (3.2%)

6 (3.8%)

Site of onset, n (%)

0.790

 Head of pancreas

201 (79.8%)

75 (80.6%)

126 (79.2%)

 Tail of pancreas

51 (20.2%)

18 (19.4%)

33 (20.8%)

Differentiation, n (%)

0.613

 Poor

61 (24.1%)

21 (22.3%)

40 (25.2%)

 Moderate-high

192 (75.9%)

73 (77.7%)

119 (74.8%)

AJCC8 staging

0.677

 Stage I

121 (47.8%)

48 (51.1%)

73 (45.9%)

 Stage II

86 (34%)

31 (33%)

55 (34.6%)

 Stage III-IV

46 (18.2%)

15 (16%)

31 (19.5%)

Obstructive jaundice

129 (51%)

44 (46.8%)

85 (53.5%)

0.307

Follow-up time, months, median (range)

16.5 (0.1,95)

20.9 (0.5,95)

14.2 (0.1,93.3)

0.327