Table 3 Comparison of baseline characteristics in FAH cohort before and after IPTW adjustment

Age

0.806

−0.0345

0.902

−0.012

  < 55

42 (42.0%)

25 (45.5%)

67.6 (43.6%)

68.9 (44.7%)

  > =55

58 (58.0%)

30 (54.5%)

87.4 (56.4%)

85.2 (55.3%)

0.846

Sex

0.882

−0.0264

−0.017

 Female

41 (41.0%)

24 (43.6%)

64.2 (41.4%)

66.5 (43.1%)

 Male

59 (59.0%)

31 (56.4%)

90.8 (58.6%)

87.6 (56.9%)

0.951

PTS

0.89

 Stamoch

19 (19.0%)

12 (21.8%)

0.0282

29.7 (19.2)

28.2 (18.3)

−0.011

 Small intestine

21 (21.0%)

12 (21.8%)

0.0082

33.1 (21.3)

30.2 (19.6)

−0.011

 Colorectum

60 (60.0%)

31 (56.4%)

−0.0364

92.3 (59.5)

95.7 (62.1)

0.998

0.022

Grade

0.535

 Well differentiation G1

14 (14.0%)

7 (12.7%)

−0.0127

20.3 (13.1)

19.5 (12.6)

−0.004

 Moderate differentiation G2

70 (70.0%)

42 (76.4%)

0.0636

112.1 (72.3)

113.5 (73.6)

0.126

 Poor differentiation G3

10 (10.0%)

2 (3.6%)

−0.0636

11.9 (7.7)

10.7 (6.9)

0.008

 NEC

6 (6.0%)

4 (7.3%)

0.0127

10.6 (6.9)

10.5 (6.8)

0.000

T

0.37

0.989

 T1

16 (16.0%)

13 (23.6%)

0.0764

29.1 (18.8)

27.7 (18.0)

−0.007

 T2

41 (41.0%)

16 (29.1%)

−0.1191

57.5 (37.1)

57.8 (37.5)

0.004

 T3

21 (21.0%)

15 (27.3%)

0.0627

35.9 (23.2)

38.9 (25.3)

0.021

 T4

22 (22.0%)

11 (20.0%)

−0.02

32.5 (21.0)

29.7 (19.3)

Primary tumor size

0.0713

−0.1455

0.986

−0.001

  < 2

20 (20.0%)

19 (34.5%)

39.1 (25.2%)

39.1 (25.4%)

  > =2

80 (80.0%)

36 (65.5%)

115.9 (74.8%)

115.0 (74.6%)

Extrahepatic metastases

0.885

0.0255

0.826

0.018

 No

68 (68.0%)

36 (65.5%)

101.8 (65.7%

98.3 (63.8%)

 Yes

32 (32.0%)

19 (34.5%)

53.2 (34.3%)

55.8 (36.2%)