Research Article
Prognostic Value of the Pretreatment Systemic Immune-Inflammation Index in Patients with Colorectal Cancer
Table 1
Characteristics of all the studies included in the meta-analysis.
| | Author | Year | Country | Ethnicity | Treatment | Follow-up (month) | Cut-off | Study period | Patients () | Survival analysis | NOS score |
| | Passardi | 2016 | Italy | Europe | No surgery | 36 (1-65) | 730 | 2007-2012 | 289 | OS/PFS | 8 | | Yang | 2017 | China | Asian | No surgery | 40 (12-72) | 460.66 | 2009-2015 | 95 | OS/PFS | 7 | | Chen | 2017 | China | Asian | With surgery | >60 | 340 | 1994-2010 | 1383 | OS/PFS | 8 | | Zhou | 2018 | China | Asian | With surgery | 21.72 (2.11-118.72) | 385.91 | 2007-2015 | 516 | OS/PFS | 8 | | Yang | 2018 | China | Asian | With surgery | 37.0 (16.2-93.3) | 437.72 | 2010-2015 | 98 | OS/PFS | 7 | | Tao | 2018 | China | Asian | With surgery | NA | 667.75 | 2011-2013 | 118 | NA | 6 | | Xie | 2018 | China | Asian | With surgery | 26.7 (1.1-92.4) | 649.45 | 2009-2014 | 240 | OS | 6 | | Wang | 2019 | China | Asian | With surgery | 28 (19-46) | 517 | 2002-2016 | 452 | OS/DFS | 8 | | Zhang | 2019 | China | Asian | With surgery | NA | NA | 2010-2013 | 224 | OS | 6 | | Lu | 2019 | China | Asian | With surgery | NA | 1505 | 2010-2017 | 182 | NA | 6 | | Jiang | 2019 | China | Asian | No surgery | 33.2 (2.6-94.5) | 660.55 | 2010-2017 | 102 | OS/PFS | 7 | | Yang | 2019 | China | Asian | No surgery | 23.9 (12-87) | 534.94 | 2009-2015 | 220 | OS/PFS | 7 |
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OS: overall survival; PFS: progression-free survival; DFS: disease-free survival; NA: not available; NOS: Newcastle-Ottawa quality assessment scale.
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