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Table 1 Baseline characteristics of studies included in the meta-analysis

From: Prognostic role of pretreatment thrombocytosis on survival in patients with cervical cancer: a systematic review and meta-analysis

Study Publication year Country Study design Sample size Mean age (years) Disease stages Treatment strategy Cutoff value Adjusted or not Reported outcomes NOS scale
Hernandez et al. [33] 1992 USA Retrospective 113 59.2 I–IV Radiation 400 Not OS 5
Lopes et al. [37] 1994 England Retrospective 643 45.5 Ib–IV Surgery or radiation 400 Not OS 7
Hernandez et al. [32] 1994 USA Retrospective 623 NS Ib Surgery 400 Not OS, PFS 7
Rodriguez et al. [40] 1994 USA Retrospective 219 40.0 Ib Surgery 300 Not OS 5
De Jonge et al. [28] 1999 South Africa Retrospective 93 NS Ib Surgery 400 Yes OS, RFS 6
Hernandez et al. [31] 2000 USA Retrospective 291 49.8 IIb–IVa Surgery or radiation 400 Yes OS 6
Qiu et al. [39] 2010 China Retrospective 318 43.0 I–IV NS 400 Not OS 6
Gadducci et al. [29] 2010 Italy Retrospective 46 47.0 Ib–IIb Surgery or chemotherapy 272 Not OS, RFS 6
Gadducci et al. [30] 2010 Italy Retrospective 140 47.0 Ib–IIb Surgery or chemotherapy 272 Not OS, RFS 6
Wang et al. [41] 2012 China Retrospective 111 42.0 Ib–IIb Surgery or chemotherapy 266 Not OS, PFS 5
Biedka et al. [27] 2012 Poland Retrospective 58 NS I–IV Surgery or radiation NS Not PFS 5
Zhao et al. [44] 2015 China Retrospective 220 NS I–IIa Surgery 300 Not OS, RFS 6
Xiao et al. [42] 2015 China Retrospective 238 52.0 I–IV Radiation and chemotherapy 200 Not OS, PFS 6
Li et al. [36] 2015 China Retrospective 380 51.0 Ia–IIb Surgery 300 Not OS 6
Koulis et al. [34] 2017 Canada Retrospective 257 50.0 Ib–IV Chemoradiotherapy and surgery 400 Yes (OS), No (PFS) OS, PFS 7
Kozasa et al. [35] 2017 Japan Retrospective 684 NS I–IV Chemoradiotherapy and surgery 350 Yes OS, PFS 7
Zheng et al. [45] 2017 China Retrospective 800 49.5 Ia–IIa Surgery 272 Yes OS, RFS 7
Nakamura et al. [38] 2018 Japan Retrospective 98 65.0 I–IV Radiation and chemotherapy 350 Not OS, PFS 6
Xu et al. [43] 2018 China Retrospective 1189 NS Ia–IIa Surgery 300 Yes PFS 7