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. 2018 Nov 3;18:172. doi: 10.1186/s12935-018-0668-y

Table 2.

Main characteristics of studies included in this meta-analysis

First author Publication year Case nationality Dominant ethnicity Median or mean age Study design Malignant disease Main type of pathology Detected sample Assay method Survival analysis Source of HR Maximum months of follow-up
Chou [20] 2018 China Asian 50 R Glioblastoma multiforme Glioma Tissue ihc OS/PFS Reported 207
Lu [10] 2017 China Asian 60 R Colorectal cancer AdenoCa Tissue ihc OS SC 40
Huang [4] 2017 China Asian 60 R Colorectal cancer AdenoCa Tissue ihc OS Reported 50
Li [11] 2017 China Asian 40 R Cervical carcinoma SqCa Tissue ihc OS Reported 78
Shimuraa [41] 2017 Japan Asian 55 R Biliary cancer AdenoCa Serum ELISA OS Reported 69.9
Shimurab [41] 2017 Japan Asian 55 R Pancreatic cancer AdenoCa Serum ELISA OS Reported 66
Wang [49] 2017 China Asian NM R Ovarian cancer SqCa Tissue ihc OS Reported 72
Liu [37] 2017 China Asian 65.1 R Colorectal cancer AdenoCa Tissue ihc DFS Reported 60
Gopalan [21] 2016 Australia Caucasian 60 R Colorectal cancer AdenoCa Tissue ihc OS SC 110
Ilmer [12] 2016 American Caucasian 47 R Breast cancer AdenoCa Tissue ihc OS SC 232
Yang [48] 2016 China Asian 66.8 R Colorectal cancer AdenoCa tissue ihc DFS Reported 60
Tas [36] 2016 Turkey Caucasian 59.5 R Gastric cancer AdenoCa Serum ELISA OS SC 97
Cheng [40] 2015 China Asian 55.2 R Gastric cancer AdenoCa Serum ELISA OS SC 60
Lu [47] 2015 China Asian 51 R Ovarian cancer SqCa Tissue ihc OS Reported 77
Jiang [22] 2014 China Asian 50 R Hepatocellular carcinoma AdenoCa Tissue ihc OS Reported 87
Gomes [23] 2014 Brazil Caucasian 50 R Gastric cancer AdenoCa Tissue ihc OS SC 55
Mu [44] 2013 China Asian 66 R Gastric cancer AdenoCa Tissue ihc OS Reported NM
Wu [45] 2013 China Asian 59.6 R Non-small cell lung cancer SqCa Tissue ihc OS Reported 90
Liu [46] 2013 China Asian 57.1 R Non-small cell lung cancer SqCa Tissue ihc OS SC 80
Yamaki [24] 2012 Japan Asian 53 R Breast cancer AdenoCa Tissue ihc OS/PFS SC 13
Yang [25] 2012 China Asian 45 R Gallbladder carcinoma AdenoCa Tissue ihc OS SC 18
Kim [26] 2012 Korea Asian 60 R Gastric cancer AdenoCa Tissue ihc OS Reported 96
Kosacka [38] 2011 Poland Caucasian 59.3 R Non-small cell lung cancer SqCa Tissue ihc OS SC 24
Povegliano [27] 2010 Brazil Caucasian 50 R Colorectal cancer AdenoCa Tissue ihc OS SC 83
Canesin [42] 2010 American Caucasian NM R Bladder cancer SqCa Tissue ihc OS SC 173
Vereecken [43] 2009 American Caucasian 60 R Melanoma NM Serum ELISA OS Reported 60
Miranda [28] 2009 Brazil Caucasian 59 R Laryngeal carcinoma SqCa Tissue ihc DFS SC 166
Szoke [29] 2007 German Caucasian 58.8 R Non-small cell lung cancer SqCa Tissue ihc OS SC 127
Kang [30] 2007 Korea Asian 63 R Esophageal cancer SqCa Tissue ihc OS SC 108
Moisa [39] 2007 Germany Caucasian 56.8 R Breast cancer AdenoCa Tissue ihc OS/DFS Reported 185
Okada [13] 2006 Japan Asian 63.9 R Gastric cancer AdenoCa tissue ihc OS Reported 72
Plzak [31] 2004 Prague Caucasian 60 R Head and neck carcinoma SqCa Tissue ihc OS SC 60
Piantelli [14] 2002 Rome Caucasian 60 R Laryngeal carcinoma SqCa Tissue ihc OS/RFS SC 90
Brule [32] 2000 Belgium Caucasian 65 R Prostate carcinomas AdenoCa Tissue ihc PFS SC 86
Honjo [33] 2001 Japan Asian 60 R Tongue carcinoma SqCa Tissue ihc OS/DFS SC 118
Nakamura [34] 1999 Japan Asian NM R Colorectal cancer AdenoCa Tissue ihc OS/DFS SC 103
Sanjuan [35] 1997 Spain Caucasian NM R Colorectal cancer AdenoCa Tissue ihc OS/RFS SC 96

R retrospective, AdenoCa adenocarcinoma, SqCa squamous carcinoma, IHC immunohistochemistry, OS overall survival, DFS disease-free survival, PFS progression-free survival, RFS recurrence-free survival, SC survival curve

a, bData extracted from one study due to different malignant disease (biliary cancer and pancreatic cancer)