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Table 1 Baseline characteristics of the studies in the meta-analysis

From: Prognostic significance of glypican-3 in hepatocellular carcinoma: a meta-analysis

Studies (reference)

Year

Country

Treatment

Sample size (male, n)

Mean/median ages (years)

Vascular invasion (yes)

Differentiation (I,II/III,IV,n)

Shirakawal [18]

2009

Japan

SR

107(85)

63.6/60.2

57

12/95

Yorita [19]

2010

Japan

SR

194(142)

NA

108

179/15

Su [20]

2012

China

SR

61(55)

48.0

NA

NA

Yu [21]

2012

Taiwan

SR

100(90)

51.39

23

NA

Wang [23]

2012

China

LT

31(29)

49

16

6/25

Chen [24]

2013

Japan

SR

55(36)

65.5 /63.5

NA

NA

Fu [25]

2013

China

SR

160(140)

50.2

30

123/37

Liang [26]

2013

China

SR

362(324)

43-50

53

NA

Studies (Reference)

Tumor stage (I, II/ III, IV, n)

Follow- up Mean/ median (months)

Outcome indexes

Multi- variate analysis

Patients with High GPC3

Study quality (Points)

"high" GPC3 cut- off level

Shirakawal [18]

92/15

42

OS/DFS

Yes

87

8/9

>10 %

Yorita [19]

82/112

31.2

OS/DFS

Yes

97

7/9

≥20 %

Su [20]

45/16

NA

OS/DFS

Yes

32

5/9

>10 %

Yu [21]

NA

66.5

DFS

NA

NA

5/9

+3*

Wang [23]

12/19

24

DFS

NA

20

5/9

>10 %

Chen [24]

NA

66

OS/DFS

yes

28

6/9

>10 %

Fu [25]

NA

34.5

OS/DFS

yes

109

8/9

>25 %

Liang [26]

NA

34.5

OS

NA

228

6/9

>0 %

Studies (Reference)

Antibody type

Detection method

Evaluation method

GPC3 staining

Shirakawal [18]

Mouse Monoclonal antibody

IHC

Positive area

Cytoplasm membrane

Yorita [19]

Monoclonal antibody

IHC: Histofine Her2 kit

Positive area

Cytoplasm membrane

Su [20]

Mouse Monoclonal antibody

IHC: Chemmate EnVision/Mo&Rb detection kit

Positive area and intensity

Cytoplasm membrane

Yu [21]

NA

IHC

NA

Cytoplasm membrane

Wang [23]

Monoclonal antibody

IHC

Positive area

Cytoplasm membrane

Chen [24]

Rabbit monoclonal antibody

IHC

Positive area

cytoplasm peri- canalicular

Fu [25]

Mouse Monoclonal antibody

IHC

Percentage of positive cells

Cytoplasm membrane

Liang [26]

NA

IHC: two-step protocol (DakoCytomation, Glostrup, Denmar)

TMAJ Image application

Cytoplasm membrane

  1. SR, surgical resection; LT, livertransplantation; NA, not available; IHC, immunohistochemistry; OS, overall survival; DFS, disease-free survival.
  2. Tumor vascular invasion was defined as presence of either macro- or microscopic vascular invasion (including portal vein invasion, etc.).
  3. High glypican-3 cut-off level was scored according to the percentage of positive tumor cells by immunohistochemical staining.
  4. *The expression level was scored on a scale from -3 (underexpression) to +3 (overexpression).