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Table 1 Characteristics of the included studies in the meta-analysis

From: Systematic review of single-incision versus conventional multiport laparoscopic surgery for sigmoid colon and rectal cancer

  Patients (n) BMI Tumor size (cm) Sex (M/F) Age Tumor location Score
First author Year Study area Type SILS/CLS SILS CLS SILS CLS SILS CLS SILS CLS  
Liu [7] 2016 China NRCT 16/32 21.9 22.4 3.6 3.6 13/3 23/9 56.4 55.6 Sigmoid and rectum 5
Hong [8] 2016 China RCT 43/43 NR NR NR NR 23/20 26/17 52.3 54.1 Rs 3
Bulut [9] 2015 Denmark RCT 20/20 24 24 2.5 4.0 12/8 12/8 69 73 Rectum 3
Kim [10] 2014 Korea NRCT 67/49 23.1 23.5 4.3 5.3 44/23 28/21 63.8 61.3 Rectum 7
Levic [11] 2014 Denmark NRCT 36/194 23.8 25 NR NR 17/19 133/61 69 68 Rectum 8
Tei [12] 2018 Japan NRCT 44/49 23.6 22 3.9 4.1 29/15 29/20 66 63 Rectum 8
Kwag [13] 2013 Korea NRCT 24/48 24.4 24 2.6 3.4 9/15 18/30 59.5 59 Sigmoid 7
Park [14] 2012 Korea NRCT 37/54 24.7 23.9 NR NR 21/16 26/28 63.8 59.9 Sigmoid 7
Nerup [15] 2018 Denmark NRCT 12/41 23.5 25 NR NR 7/5 13/28 76 69 Rectum 6
  1. F female, M male, NR no record, RCT randomized controlled trials, NRCT non-randomized controlled trials, SILS single-port laparoscopic surgery, CLS conventional multi-port laparoscopic surgery, Rs rectosigmoid junction cancer