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Table 2 Characteristics of eligible studies for clinicopathological features

From: Prognostic values of tumoral MMP2 and MMP9 overexpression in breast cancer: a systematic review and meta-analysis

Author

Year

Country

Sample size

Cut-offa

Protein

T

N

M

ER

PR

HER2

S

G

NOS

Talvensaari-Mattila [51]

1998

Finland

169

P > 1%

MMP2

✓

✓

✓

✓

✓

 

✓

✓

8

Talvensaari-Mattila [50]

1999

Finland

108

P > 1%

MMP2

✓

  

✓

✓

  

✓

8

Talvensaari-Mattila [49]

2001

Finland

100

P > 1%

MMP2

✓

      

✓

7

Scorilas

2011

Greece

210

HSCORE> 175

MMP9

✓

✓

 

✓

✓

 

✓

✓

7

Hirvonen [47]

2003

Finland

137

P > 1%

MMP2

✓

  

✓

✓

 

✓

 

6

Nakopoulou

2003

Greece

135

P > 10%

MMP2

✓

  

✓

✓

 

✓

 

6

Fan [45]

2003

China

66

SI ≥ 1

MMP2, MMP9

✓

✓

 

✓

✓

 

✓

 

6

Talvensaari-Mattila [44]

2003

Finland

453

P > 1%

MMP2

✓

✓

✓

✓

✓

  

✓

8

Li [19]

2004

China

270

P > 1%

MMP2, MMP9

✓

  

✓

✓

 

✓

 

6

Rahko [23]

2004

Finland

168

P > 1%

MMP9

✓

  

✓

✓

 

✓

✓

7

Ban [52]

2004

China

60

SI ≥ 3

MMP2

 

✓

    

✓

 

7

Sivula

2005

Finland

194

P > 20%

MMP2

✓

✓

 

✓

✓

   

7

Zhou [42]

2005

China

112

P > 5%

MMP2

 

✓

✓

✓

✓

  

✓

7

Mylona

2007

Greece

175

P > 20%

MMP9

✓

✓

 

✓

✓

 

✓

✓

6

Hao

2007

China

76

SI ≥ 5

MMP9

✓

✓

 

✓

✓

 

✓

✓

7

Wu

2008

China

60

P > 50%

MMP9

✓

✓

 

✓

✓

 

✓

✓

7

Sullu [22]

2011

Turkey

140

SI ≥ 5

MMP9

✓

✓

✓

✓

✓

✓

 

✓

8

Zhao [18]

2013

China

127

SI ≥ 6

MMP9

✓

✓

    

✓

✓

6

Zeng [36]

2013

China

253

P > 20%

MMP9

✓

✓

 

✓

✓

✓

✓

 

8

Wu

2014

China

41

SI ≥ 1

MMP9

 

✓

 

✓

✓

✓

✓

✓

7

Tang

2014

China

156

SI ≥ 6

MMP9

✓

✓

 

✓

✓

✓

✓

✓

8

Min [32]

2014

Korea

177

SI ≥ 1, SI ≥ 5

MMP2, MMP9

✓

✓

 

✓

✓

✓

✓

✓

7

Youssef

2014

Egypt

67

P > 10%

MMP9

✓

✓

 

✓

✓

✓

✓

✓

7

Huang [55]

2014

China

147

P > 10%

MMP9

✓

     

✓

 

6

Ramos [29]

2016

Brazil

44

P > 10%

MMP2

✓

✓

✓

✓

✓

✓

✓

 

7

Li [16]

2017

China

80

P > 25%

MMP2, MMP9

✓

✓

    

✓

 

7

Yang [28]

2018

Korea

173

SI ≥ 2

MMP9

✓

✓

 

✓

✓

✓

✓

✓

8

Zhang [56]

2019

China

127

SI ≥ 6

MMP9

✓

✓

    

✓

✓

7

Zhou [54]

2009

China

43

SI ≥ 3

MMP9

✓

✓

    

✓

✓

7

Joseph [27]

2020

British

675

SI

MMP9

✓

✓

 

✓

✓

 

✓

✓

8

  1. aCut-off for overexpression of matrix metalloproteinases in tumor cells by immunohistochemistry
  2. P percentage of stained cells, SI staining index considering both percentage and intensity of staining, T tumor size, N lymph node status, M distant metastasis, ER estrogen receptor, PR progesterone receptor, HER2 human epidermal growth factor receptor 2, S TNM stage, G histological grade