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Table 1 Characteristics of eligible studies for survival analysis

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

Author

Year

Country

Sample size

Percent of IDC (%)

Cut-offa

Follow-up

Protein

Survival outcome

HR data

Survival analysis

NOS

Talvensaari-Mattila [51]

1998

Finland

169

82

P > 0%

92 months

MMP2

OS

Rep

U

8

Talvensaari-Mattila [50]

1999

Finland

108

96

P > 0%

2 years

MMP2

RFS

Est

U

8

Talvensaari-Mattila [49]

2001

Finland

100

79

P > 0%

44 months

MMP2

OS, RFS

Est

U

7

Scorilas

2011

Greece

210

75

HSCORE> 175

62 months

MMP9

OS, RFS

Rep

U, M

7

Djonov [48]

2002

Switzerland

75

61

SI ≥ 1

NR

MMP2

OS, DFS

Rep

M

6

Hirvonen [47]

2003

Finland

137

NR

P > 0%

10 years

MMP2

RFS

Est

U

6

Fan [45]

2003

China

66

86

SI ≥ 1

30.5 months

MMP2, MMP9

OS

Rep

M

6

Talvensaari-Mattila [44]

2003

Finland

453

75

P > 0%

60–150 months

MMP2

OS

Rep

M

8

Li [19]

2004

China

270

90

P > 0%

61 months

MMP2, MMP9

OS, RFS

Rep

U, M

6

Pellikainen [58]

2004

Finland

415

64

P > 85%b

55 months

MMP9

RFS

Rep

M

7

Rahko [23]

2004

Finland

168

75

P > 1%

7–111 months

MMP9

OS, DFS

Rep

U

7

Ban [52]

2004

China

60

100

SI ≥ 3

> 5 years

MMP2

OS

Est

U

7

Zhou [42]

2005

China

112

84

P > 5%

48 months

MMP2

OS

Rep

M

7

Zhang [38]

2008

China

263

100

SI ≥ 6

92.1 months

MMP2, MMP9

OS

Rep

U

6

Zhao [53]

2008

China

71

93

P > 10%

54.94 months

MMP9

OS

Est

U

6

Sullu [22]

2011

Turkey

140

100

SI ≥ 5

63.2 months

MMP9

OS, DFS

Est

U

8

Ranogajec [37]

2012

Croatia

138

59

SI ≥ 2

5 years

MMP2

OS

Est

U

7

Fernandez-Guinea [21]

2013

Spain

97

100

SI

> 5 years

MMP2, MMP9

RFS

Rep

U, M

6

Zhao [18]

2013

China

127

NR

SI ≥ 6

NR

MMP9

OS

Rep

M

6

Liu [17]

2013

China

189

89

P > 10%

NR

MMP9

OS

Rep

U, M

8

Zeng [36]

2013

China

253

NR

P > 20%

15 years

MMP9

OS, DFS

Rep

U, M

8

Merdad [20]

2014

Saudi Arabia

45

84

SI ≥ 2

52.1 months

MMP9

OS

Rep

U

7

Puzovic [35]

2014

Croatia

121

100

SI

80.6 months

MMP2, MMP9

OS, DFS

Rep

U

7

Min [32]

2014

Korea

177

100

SI ≥ 1, SI ≥ 5

NR

MMP2, MMP9

OS

Rep

M

7

Yousef [30]

2014

Canada

300

NR

SI ≥ 5

NR

MMP9

RFS

Est

U

6

Bottino [59]

2014

Brazil

60

1

MOD> 191

NR

MMP9

OS

Rep

U

7

Huang [55]

2014

China

147

86

P > 10%

45.6 months

MMP9

OS, DFS

Rep

U, M

6

Ramos [29]

2016

Brazil

44

77

P > 10%

NR

MMP2

OS, DFS

Est

U

7

Li [16]

2017

China

80

NR

P > 25%

NR

MMP2, MMP9

OS

Est

U

7

Yang [28]

2018

Korea

173

100

SI ≥ 2

NR

MMP9

OS, DFS

Rep

U, M

8

Zhang [56]

2019

China

127

NR

SI ≥ 6

NR

MMP9

OS

Rep

M

7

  1. aCut-off for overexpression of matrix metalloproteinases in tumor cells by immunohistochemistry
  2. bMedian value
  3. IDC infiltrating ductal carcinoma, P percentage of stained cells, SI staining index considering both percentage and intensity of staining, OS overall survival, DFS disease-free survival, RFS recurrence-free survival, Rep reported in the text, Est estimated from survival curve, U univariate analysis, M multivariate analysis, NR not reported, MOD mean optical density