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Table 1 Study and baseline characteristics for studies included in the meta-analysis

From: Microwave ablation compared with hepatic resection for the treatment of hepatocellular carcinoma and liver metastases: a systematic review and meta-analysis

First author Year Study design Region Population Arm 1 Arm 2 Arm 3 MWA approach Patients (N) Age (years) Male (%)
MWA HR MWA + HR
Xu, J [23] 2015 RCT China HCC MWA HR Percutaneous 45 45 58.1 73
Tanaka, K [4] 2006 Retrospective cohort Japan Metastases HR MWA + HR 37 16 60.3 62
Wang, ZL [24] 2008 Retrospective cohort China HCC MWA HR Percutaneous 114 80 56.0 88
Imura, S [11] 2012 Prospective cohort Japan HCC HR MWA + HR 10 12 65.6 68
Stattner, S [3] 2013 Retrospective cohort UK Metastases MWA MWA + HR Open 15 28 66.1 74
Takami, Y [25] 2013 Prospective cohort Japan HCC MWA HR Thoracotomy, laparoscopy, or laparotomy 390 34 67.5 62
Shi, J [26] 2014 Retrospective cohort China HCC MWA HR NR 117 107 55.6 80
Tan, K [12] 2014 Retrospective cohort China Metastases/ HCC* HR MWA + HR 62 66 50.3 84
Zhang, EL [6] 2016 Retrospective cohort China HCC MWA HR Percutaneous 68 122 51.6 88
Li, W [27] 2017 Retrospective cohort China HCC MWA HR Percutaneous, laparoscopic, and open 60 220 62.5 82
Philips, P [13] 2017 Retrospective cohort USA Metastases/ HCC* MWA HR MWA + HR Laparoscopic and open 108 84 84 61.0 55
Ryu, T [7] 2017 Retrospective cohort Japan Metastases MWA HR MWA + HR Open 13 14 7 66.0 71
Song, P [14] 2017 Retrospective cohort China Metastases MWA HR Percutaneous† 28 34 60.0 53
Zhang, QB [15] 2017 Retrospective cohort China HCC MWA HR Percutaneous 31 42 53.2 67
Chen, ZB [16] 2018 Retrospective cohort China HCC HR MWA + HR 191 112 51.6 73
Chong, CCN [17] 2018 Retrospective cohort China HCC MWA HR Percutaneous, laparoscopic, and open 63 63 63.8 71
  1. *Also included some patients with cholangiocarcinoma
  2. †Assumed percutaneous because of the description of the temperature sensors
  3. Abbreviations: HCC hepatocellular carcinoma, HR hepatic resection, MWA microwave ablation, NR not reported