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Table 1 Characteristics of studies included in the meta-analysis

From: Prognostic significance of CXCL5 expression in cancer patients: a meta-analysis

Author

Year

Region

Type of cancer

Sample size (high/low)

Follow-up (month)

Endpoints

Expression associated with poor prognosis

Samples detected

Assay method

Cut-off value

Survival analysis

NOS score

Method

Lee et al.

2018

Korea

Biliary tract cancer

4/23

23

OS

High

Blood

ELISA

High: serum CXCL5 levels were > 2.081 ng/mL

Multivariate

7

1

Bièche et al.

2007

France

Breast cancer

24/24

120

RFS

High

Tissue

RT-PCR

ROC

Univariate

7

2

Oksana et al.

2014

Poland

Lung cancer

37/37

82

OS, DFS

Low

Tissue

RT-PCR

High: the gene expression of CXCL5 in tumor tissue was more than 1.08 times than normal tissue

Multivariate

7

2

Zhou et al.

2014

China

Intrahepatic cholangiocarcinoma

70/70

120

OS

High

Tissue

IHC

Median

Univariate Multivariate

7

1

Zhu et al.

2016

China

Bladder cancer

131/124

87

OS, RFS, PFS

High

Tissue

IHC

High: IRS > 4

NA

7

2

Dai et al.

2016

China

Glioma

34/31

48

OS

High

Tissue

WB, RT-PCR

Median

NA

6

2

Wu et al.

2017

China

Lung cancer

75

60

OS

High

Tissue

IHC,RT-PCR

High: the multiplication for intensity and proportion was more than 2

Univariate Multivariate

7

2

    

2437

60

OS, PFS

High

Tissue

RT-PCR

Median

Univariate

6

1

Kawamura et al.

2011

Japan

Colorectal cancer

69/181

104

OS

High

Blood

ELISA

High: serum CXCL5 levels were > 1.53 ng/mL

Univariate Multivariate

7

1

Han et al.

2015

China

Lung adenocarcinoma

34/192

127

OS,RFS

High

Tissue

RT-PCR

Median

Univariate

6

2

Speetjens et al.

2008

The Netherlands

Colorectal cancer

Cohort 1 53/17

172

DFS

Low

Tissue

RT-PCR

The 25th percentile as cut off point

Univariate Multivariate

7

1

    

Cohort 2 50/8

162

OS

Low

Tissue

IHC

High: CXCL5 expression in > 50% of the tumor cells

Univariate Multivariate

7

1

Okabe et al.

2012

Japan

Intrahepatic cholangiocarcinoma

25/25

126.3

OS

High

Tissue

IHC

High: a percentage of the total number of stained cells > 10%

NA

6

2

Li et al.

2010

USA

Pancreatic cancer

130/23

180

OS

High

Tissue

IHC

High: percentage of tumor cells staining positively for CXCL5 > 5.5%

NA

6

2

Zhou et al.

2012

China

Hepatocellular carcinoma

47/47

50

OS

High

Tissue

IHC

Median

Univariate Multivariate

8

1

    

162/161

75

OS

High

Tissue

IHC

Median

Univariate Multivariate

8

1

    

251/251

75

OS

High

Tissue

IHC

Median

Univariate Multivariate

8

1

Zhang et al.

2013

China

Nasopharyngeal carcinoma

75/70

105

OS, PFS

High

 

ELISA

High: serum CXCL5 levels were > 0.805 ng/ml

Univariate Multivariate

7

1

Zhao et al.

2017

China

Colorectal cancer

48/30

60

OS, DFS

High

 

IHC

High: a staining score of 4.5 as the cut-off value

Univariate Multivariate

8

1

  1. Method: 1 denoted as obtaining HRs directly from publications; 2 denoted as HRs calculated from the total number of events, corresponding p value and data from Kaplan–Meier curves
  2. OS overall survival, DFS disease-free survival, PFS progression-free survival, RFS recurrence-free survival, IHC immunohistochemistry, RT-PCR real time polymerase chain reaction, ELISA enzyme-linked immunosorbent assay, NA not available, ROC receiver operating characteristics, NOS Newcastle–Ottawa Scale