Skip to main content

Table 1 Main characteristics of the studies included in this meta-analysis

From: The role of vascular endothelial growth factor as a prognostic and clinicopathological marker in osteosarcoma: a systematic review and meta-analysis

Study

Year

Patient source

Antibody type

Antibody dilution

Number of patients

Tumor stage

Method and isoforms

Cutoff value

HR Source

Outcome

NOS score

Kong

2020

China

Beijing Bioss Biotech

1:100

37

I, II, III

IHC

 ≥ 2a

SC

OS, CPF

6

Mohamed

2019

Egypt

Santa Cruz

1:100

66

II, III

IHC

 > 30%b

NA

CPF

6

Wu

2019

China

Santa Cruz

1:100

53

I, II, III

IHC

 ≥ 4a

COX

OS, CPF

7

Liu

2017

China

Santa Cruz

NA

84

I, II, III

IHC

 ≥ 1a

COX

OS, CPF

7

Lei

2015

China

Abcam

1:150

32

I, II, III

IHC

 > 3a

NA

CPF

6

Zhao

2015

China

NA

NA

153

I, II, III

IHC

 ≥ 4a

SC

OS, CPF

8

Baptista

2014

Brazil

Dako

1:100

50

I, IIA, IIB

IHC

 > 30%b

SC

OS, DFS, CPF

8

Becker

2013

Brazil

Dako

1:50

27

IIB III

IHC

 > 30%b

NA

CPF

6

Lammli

2012

USA

Santa Cruz

NA

54

NA

IHC

 ≥ 20%b

NA

CPF

6

Chen

2012

China

Santa Cruz

1:200

49

IIA, IIB, III

IHC

NA

SC

DFS, CPF

9

Zhou

2011

China

Santa Cruz

1:200

65

IIA, IIB, III

IHC

 ≥ 10%b

NA

CPF

6

Lin

2011

China

FuZhou JingXing Corporation

NA

56

II III

IHC

 ≥ 10%b

SC

OS, CPF

8

Lugowska

2011

Poland

Santa Cruz

4:2000

91

IIB, III

IHC

 > 50%b

COX

OS, CPF

8

Abdeen

2009

USA

NA

NA

48

IIB, III

IHC

 ≥ 2pointsc

NA

CPF

7

Mizobuchi

2008

USA

Santa Cruz

1:200

48

NA

IHC

 ≥ 1, intensity of staining

NA

CPF

6

Huang

2008

China

Santa Cruz

1:100

31

I, IIA, IIB

IHC

 ≥ 1, intensity of staining

NA

CPF

6

Park

2008

Korea

Zymed Lab

1:100

35

NA

IHC

 > 30%b

NA

CPF

6

Charity

2006

England

BD Biosciences Pharmingen

NA

53

I, II, III

IHC

 ≥ 25%b

COX

OS, DFS, CPF

6

Oda

2006

Japan

Santa Cruz

1:500

30

NA

IHC

IRS ≥ 2 + with focal to diffuse distributions

SC

OS, CPF

8

Jung

2005

Korea

Santa Cruz

1:200

25

NA

IHC

 > 2 + , number of new vessel

NA

CPF

7

Kaya

2000

Jpan

Santa Cruz

1:200

27

I, II, III

IHC

 > 30% b

SC

OS, DFS, CPF

9

Lee

1999

Japan

–

–

30

NA

RT-PCR

–

SC

OS, CPF

6

  1. HR, hazard ratio; IHC, immunohistochemistry; qRT-PCR: quantitative real-time polymerase chain reaction; NOS, Newcastle–Ottawa Scale; OS, overall survival; DFS, disease-free survival; SC, survival curve; IRS, immunoreactive score; NA, not available;
  2. aThe IRS was calculated by multiplication of percentage of stained cells and the intensity of staining;
  3. bTotal score was calculated by the number of positive cells;
  4. cThe staining was consistent with the control tissue and was of equal intensity to the positive control tissue