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Table 1 Characteristics of the distant metastatic HCC patients before 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

Before matching

Tumor size ≤ 50mm

n = 189 (23.5%)

Tumor size > 50mm

n = 615 (76.5%)

P value

SMD

Age (year)

63.4 ± 11.5

64.6 ± 12.0

0.585

0.094

Race

  

0.178

0.149

 Black

37 (19.6)

89 (14.5)

  

 White

123 (65.1)

410 (66.7)

  

 Other

29 (15.3)

116 (18.9)

  

Grade

  

0.088

0.142

 Well differentiated

50 (26.5)

117 (19)

  

 Moderately  Differentiated

66 (34.9)

240 (39)

  

 Poorly differentiated and undifferentiated

73 (38.6)

258 (42)

  

Sex

  

0.666

0.036

 Male

153 (81)

489 (79.5)

  

 Female

36 (19)

126 (20.5)

  

Surgical treatment

  

0.052

0.139

 Wedge or segmental resection

16 (8.5)

38 (6.2)

  

 Local tumor destruction

8 (4.2)

10 (1.6)

  

 No surgery

165 (87.3)

567 (92.2)

  

T

  

 < 0.001

0.657

 T0, T1

53 (28)

151 (24.6)

  

 T2

98 (51.9)

19 (3.1)

  

 T3

27 (14.3)

367 (59.7)

  

 T4

11 (5.8)

78 (12.7)

  

N

  

0.423

0.666

 N0

134 (70.9)

417 (67.8)

  

 N1

55 (29.1)

198 (32.2)

  

AFP

  

0.167

0.115

 Negative

45 (23.8)

118 (19.2)

  

 Positive

144 (76.2)

497 (80.8)

  

 M

All is M1