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Table 1 Characteristics of the included studies in this systematic review and meta-analysis

From: Association between Epstein-Barr virus infection and gastric cancer: a systematic review and meta-analysis

Author [Ref.] Year Location Study design Type of sample No. of case No. of control No. of case positive No. of control positive
Rowlands [29] 1993 UK and Japan Cross-sectional FFPE 174   9  
Shibata [30] 1993 USA Cross-sectional FFPE 187   19  
Tokunaga [31] 1993 Japan Cross-sectional FFPE 1848   122  
Tokunaga [32] 1993 Japan Cross-sectional FFPE 999   69  
Imai [33] 1994 Japan Case-control FFPE 1000 1000 70 0
Ott [34] 1994 Germany Case-control FFPE 39 39 7 0
Shousha [35] 1994 UK Case-control FFPE 19 9 1 5
Yuen [36] 1994 China Case-control FFPE 74 36 7 0
Harn [37] 1995 Taiwan Case-control FFPE 55 49 6 0
Gulley [38] 1996 USA Case-control FFPE 95 95 11 0
Moritani [39] 1996 Japan Case-control FFPE 132 132 15 0
Selves [40] 1996 France Case-control FFPE 59 59 5 0
Shin [41] 1996 South Korea Case-control FFPE 89 37 12 0
Galetsky [42] 1997 Russia Case-control FFPE 206 206 18 0
Clark [43] 1997 Singapore Cross-sectional FFPE 137   6  
Ojima [44] 1997 Japan Cross-sectional FFPE 412   83  
Yanai [45] 1997 Japan Cross-sectional FFPE 124   12  
Herrera-Goepfert [46] 1999 Mexico Cross-sectional FFPE 135   11  
Kume [47] 1999 Japan Case-control FFPE 344 344 40 0
Takano [48] 1999 Japan Cross-sectional FFPE 513   33  
Wan [49] 1999 China Case-control FFPE 58 58 6 0
Chapel [50] 2000 France Case-control FFPE 56 56 7 0
Wu [51] 2000 Taiwan Cross-sectional Biopsy 150   30  
Corvalan [52] 2001 Chile Case-control FFPE 185 185 31 0
Kijima [53] 2001 Japan Cross-sectional FFPE 313   23  
Ishii [54] 2001 Japan Cross-sectional FFPE 119   23  
Koriyama [55] 2001 Brazil Cross-sectional FFPE 300   24  
Luqmani [56] 2001 UK Case-control FFPE 20 79 1 9
Burgess [57] 2002 UK Cross-sectional FFPE 534   9  
Kang [58] 2002 South Korea Cross-sectional FFPE 233   21  
Kattoor [59] 2002 India and Japan Cross-sectional FFPE 2226   135  
Vo [60] 2002 USA Cross-sectional FFPE 107   11  
Czopek [61] 2003 Poland Cross-sectional FFPE 40   5  
Oda [62] 2003 Japan Case-control FFPE 97 97 5 0
Ishii [63] 2004 Japan Case-control FFPE 133 133 19 0
Lee [64] 2004 South Korea Cross-sectional FFPE 1127   63  
Lopes [65] 2004 Brazil Case-control FFPE 53 53 6 0
van Beek [66] 2004 Netherlands Cross-sectional FFPE 566   41  
Alipov [67] 2005 Kazakhstan Case-control FFPE 139 139 14 0
Herrera-Goepfert [68] 2005 Mexico Case-control FFPE 330 330 24 2
Luo [69] 2005 China Case-control FFPE 172 172 11 0
Yoshiwara [70] 2005 Peru Cross-sectional FFPE 254   10  
Campos [71] 2006 Colombia Cross-sectional FFPE 368   42  
Szkaradkiewicz [72] 2006 Poland Cross-sectional FFPE 32   14  
Luo [73] 2006 China Cross-sectional FFPE 185   13  
von Rahden [74] 2006 Germany Case-control FFPE 82 82 5 0
Abdirad [75] 2007 Iran Cross-sectional FFPE 273   9  
Jung [76] 2007 South Korea Cross-sectional FFPE 111   7  
Lima [77] 2008 Brazil Cross-sectional FFPE 71   6  
Ryan [78] 2009 USA Cross-sectional FFPE 113   11  
Trimeche [79] 2009 Tunisia Cross-sectional FFPE 96   4  
Truong [80] 2009 USA Case-control FFPE 235 72 12 0
Ferrasi [81] 2010 Brazil Case-control FFPE 54 54 5 0
Koriyama [82] 2010 Japan Cross-sectional FFPE 156   21  
Chen [83] 2010 China Case-control FFPE 676 676 45 3
Boysen [84] 2011 Denmark Cross-sectional FFPE 131   10  
BenAyed-Guerfali [2] 2011 Tunisia Cross-sectional FFPE 81   12  
de Lima [85] 2012 Brazil Cross-sectional FFPE 160   11  
Ksiaa [86] 2014 Tunisia Cross-sectional FFPE 43   4  
Aslane [87] 2016 Algeria Case-control FFPE 97 10 22 0
Tsai [88] 2016 Taiwan Cross-sectional FFPE 1039   52  
Zhang [89] 2016 China Cross-sectional FFPE 600   30  
Liu [90] 2016 China Case-control FFPE 206 206 15 0
Na [91] 2017 South Korea Cross-sectional FFPE 205   15  
Boger [92] 2017 Germany Cross-sectional FFPE 484   22  
Kim [93] 2017 South Korea Case-control FFPE 207 56 13 0
Nogueira [94] 2017 Portugal Case-control FFPE 82 33 9 1
Ribeiro [3] 2017 Portugal Cross-sectional FFPE 179   15  
de Souza [95] 2018 Brazil Cross-sectional Biopsy 302   62  
Wanvimonsuk [96] 2018 Thailand Case-control FFPE 33 55 4 0
Martinez-Ciarpaglini [97] 2019 Spain Cross-sectional FFPE 209   13  
  1. FFPE Formalin-Fixed Paraffin-Embedded