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Table 1 Baseline characteristics of 9 included studies

From: The interaction between TERT promoter mutation and MGMT promoter methylation on overall survival of glioma patients: a meta-analysis

Study Institute Country No. of cases NOS domain
LGG GBM Total cases Selection Comparability Outcome
Arita 2016 [26] Multicenter Japan 421 337 758 4 0 3
Ceccarelli 2016 [27] The Cancer Genome Atlas USA 516 606 1122 4 0 3
Nguyen 2017 [16] Multicenter USA 0 303 303 4 0 3
Park 2014 [25] Seoul National University Hospital Korea 0 48 48 4 0 2
Picart 2018 [28] Lyon University Hospital France 0 17 17 4 0 2
Picca 2018 [29] OncoNeuro Tek France 30 86 116 4 0 2
Sasaki 2018 [30] Multicenter Japan 26 114 140 4 0 3
Weller 2015 [31] Multicenter Germany 137 0 137 4 0 3
Ye 2019 [32] Xiangya Hospital China 0 178 178 4 0 2
  1. Abbreviations: LGG Lower-grade glioma, GBM Glioblastoma, NOS Newcastle Ottawa Scale