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Table 2 Characteristics of the distant metastatic HCC patients after propensity score matching

From: No significant relationship exists between tumor size and prognosis in distant metastatic hepatocellular carcinoma: a propensity score matching analysis based on SEER database

Characteristic

After matching

Tumor size ≤ 50mm

n = 186 (50%)

Tumor size > 50mm

n = 186 (50%)

P value

SMD

Age (year)

63.5 ± 11.6

62.7 ± 12.3

0.586

0.067

Race

  

0.513

0.038

 Black

35 (18.8)

28 (15)

  

 White

122 (65.6)

132 (71)

  

 Other

29 (15.6)

26 (14)

  

Grade

  

0.541

0.014

 Well differentiated

48 (25.8)

42 (22.6)

  

 Moderately differentiated

65 (34.9)

75 (40.3)

  

 Poorly differentiated and undifferentiated

73 (39.3)

69 (37.1)

  

Sex

  

0.895

0.014

 Male

150 (80.6)

151 (81.2)

  

 Female

36 (19.4)

35 (18.8)

  

Surgical treatment

  

0.309

0.049

 Wedge or segmental resection

14 (7.5)

14 (7.5)

  

 Local tumor destruction

8 (4.3)

3 (1.6)

  

 No surgery

164 (88.2)

169 (90.9)

  

T

  

 < 0.001

0.657

 T0, T1

52 (28)

48 (25.8)

  

 T2

97 (52.2)

6 (3.2)

  

 T3

26 (14)

108 (58.1)

  

 T4

11 (6)

24 (12.9)

  

N

  

0.731

0.036

 N0

131 (79.4)

134 (72)

  

 N1

55 (20.6)

52 (28)

  

AFP

  

0.543

0.063

 Negative

42 (22.6)

47 (25.3)

  

 Positive

144 (77.4)

139 (74.7)

  

 M

All is M1