Systematic Reviews
Copyright ©The Author(s) 2021.
World J Gastrointest Oncol. Jul 15, 2021; 13(7): 732-757
Published online Jul 15, 2021. doi: 10.4251/wjgo.v13.i7.732
Table 1 Study details of studies concerning outcomes
Ref.YearCountryStudy designNumber of patientsAge in yr
Abu Hilal et al[24]2012United KingdomRetrosp.8366 (32-85)
Abu Hilal et al[71]2010United KingdomRetrosp.5066 (17)1
Allard et al[60]2015FranceRetrosp., PSM17665.1 ± 11
Barkhatov et al[25]2016NorwayRetrosp.14469 (30-89)
Beard et al[43]2015United StatesRetrosp., PSM11561 ± 12
Beppu et al[72]2015JapanRetrosp., PSM171-
Berardi et al[73]2017Belgium, Norway, United Kingdom, ItalyRetrosp.1048-
Castaing et al[32]2009FranceRetrosp.6062 ± 11
Chen et al[74]2018ChinaRetrosp.156-
Cheung et al[48]2013ChinaRetrosp., case-matched control2057.5 (42-74)
Cipriani et al[75]2015United KingdomRetrosp.142-
Cipriani et al[29]2016United KingdomRetrosp., PSM133-
D’Hondt et al[76]2018BelgiumRetrosp.136-
de’Angelis et al[44]2015FranceRetrosp., PSM5263 (32-81)
Efanov et al[77]2018RussiaRetrosp., PSM60-
Eveno et al[78]2016France, Spain, United Kingdom, Germany, Canada, SwitzerlandRetrosp., PSM585-
Fretland et al[12]2019NorwayRCT133-
Fretland et al[9]2018NorwayRCT13367 ± 8
Goumard et al[45]2018United StatesRetrosp., PSM4359 (26-78)
Guerron et al[50]2013United StatesRetrosp.4066.2 ± 1.9
Hirokawa et al[79]2014United StatesRetrosp., matched-pair46-
Inoue et al[80]2013JapanRetrosp.2366.1 ± 9.6
Iwahashi et al[81]2014United StatesRetrosp., matched-pair2167.5 (47-92)
Karagkounis et al[46]2016United StatesRetrosp., case-control6564 (54-71)1
Kasai et al[82]2018BelgiumRCT2065.2 (40.4-86.1)
Kazaryan et al[26]2010NorwayRetrosp.107-
Kazaryan et al[83]2010NorwayRetrosp.96-
Kubota et al[51]2014JapanRetrosp.4364.4 ± 11.4
Langella et al[52]2015ItalyRetrosp., case-control3763 (37-86)
Lewin et al[84]2016AustraliaRetrosp., PSM146-
Martínez-Cecilia et al[30]2017United Kingdom, Italy, France, Belgium, NorwayRetrosp., PSM22575 (70-87)1
Nguyen et al[31]2009United States, FranceRetrosp.10963 (32-88)
Nomi et al[27]2016France, JapanRetrosp., case-matched12061 (26-89)
Postriganova et al[28]2014NorwayRetrosp.15566 (35-84)
Qiu et al[41]2013ChinaRetrosp., comparative cohort3052.5 ± 11.5
Ratti et al[53]2018ItalyRetrosp., PSM10462 (35-81)
Robles-Campos et al[49]2019SpainRCT9666 (58-72)1
Shelat et al[85]2015SingaporeRetrosp.22-
Shim et al[54]2018South KoreaRetrosp.2265.5 ± 8.9
Tabchouri et al[70]2018FranceRetrosp.30264.4 ± 11.1
Tohme et al[55]2015United StatesRetrosp., case-matched6662.1 (11.2)1
Topal et al[86]2012BelgiumRetrosp.8164.3 (35.4-83)
Vibert et al[87]2006FranceRetrosp.37-
Yue et al[39]2018ChinaRetrosp.7874 (70-78)
Yun et al[88]2012South KoreaRetrosp.23-
Zeng et al[56]2016ChinaRetrosp., PSM7969 (65-75)
Andorra et al[89]2013SpainRetrosp.21-
Abu Hilal et al[90]2011United KingdomRetrosp., case-control2164 (26-82)
Nomi et al[57]2015FranceRetrosp., case-matched9364 (32-85)
Topal et al[58]2013BelgiumRetrosp., case-matched20-
Vavra et al[63]2015Czech Republic, United KingdomProsp., cohort2562.1 ± 10.3
Montalti et al[91]2016BelgiumRetrosp., PSM44-
Okuno et al[42]2018United StatesRetrosp., PSM2954 (27-78)
Portigliotti et al[92]2017France, ItalyRetrosp.7862.3 (37.8-86.0)
Scuderi et al[93]2017Belgium, Norway, Italy, United Kingdom, Spain, FranceRetrosp., PSM49-
Efanov et al[94]2020RussiaRetrosp. PSM5159 (41-84)
Aghayan et al[47]2017NorwayRetrosp.29666 (29-89)
Montalti et al[33]2015BelgiumRetrosp.11466.4 ± 0.89
Okumura et al[95]2019FranceRetrosp., PSM8265 (33-83)
Martínez-Cecilia et al[62]2018United Kingdom, SpainRetrosp.21-
Berti et al[40]2015GermanyRetrosp.3571 (35-82)
Dagher et al[61]2016United StatesRetrosp., PSM8966.6 ± 10.8
Ferretti et al[64]2015France, United States, Italy, South KoreaRetrosp.14266 (32-85)
Jung et al[96]2014South KoreaRetrosp., case-match2460 (43-75)
Ratti et al[65]2016ItalyRetrosp., PSM2560 (37-80)
Shin et al[34]2019South KoreaRetrosp., PSM10956 ± 11
van der Poel et al[97]2019The Netherlands, BelgiumRetrosp., PSM6164 ± 13.1
Xu et al[35]2018ChinaRetrosp. PSM2058.2 ± 10.66
Okumura et al[59]2019FranceRetrosp., PSM3862 (32-85)
Nomi et al[36]2016FranceRetrosp.208-
Hallet et al[37]2017FranceRetrosp,. PSM2763.6 (59.0-70.9)
van der Poel et al[38]2019United KingdomRetrosp., PSM27163 ± 11