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Table 1 General characteristics of the studies and participants

From: Robotic-assisted versus laparoscopic colorectal surgery: a meta-analysis of four randomized controlled trials

Author Year Country Group N Sex BMI ASA grade Age, years Disease Tumor stage Operation type
M/F I/II/III/IV I/ II/III/IV
Baik SH 2008 Korea RCS 18 14/4 22.8 (1.8) 12/6/0/0 57.3 (6.3) Rectal cancer 5/4/9/0 Tumor-specific mesorectal excision
LCS 18 14/4 24.0 (2.5) 9/6/1/1 62.0 (9.0) 5/4/9/0
Jimenez RR 2011 Spain RCS 28 12/16 28.59 (2.5) 14/14a 68.0 (9.1) Sigmoid colon cancer and rectal cancer 15/13b Total or subtotal mesorectal excision
LC S 28 17/11 26.75 (5.6) 20/8a 61.5 (15.0) 21/7b
Park JS 2012 Korea RCS 35 14/21 24.4 (2.5) 15/16/4/0 62.8 (10.5) Right-sided colon carcinoma 10/16/9/0 Right colectomies
LCS 35 16/19 23.8 (2.7) 21/12/2/0 66.5 (11.4) 9/16/10/0
Patriti A 2009 Italy RCS 29 11/18 24 (6.2) 2/13/14/0 68 (10) Rectal cancer 11/9/7/2 Total mesorectal excision
LCS 37 12/25 25.4 (6.44) 2/14/21/0 69 (10) 17/8/10/2
  1. Values are expressed as mean (SD) or number. BMI, body mass index; ASA, American Society of Anesthesiologists; RCS, robotic-assisted colorectal surgery; LCS, laparoscopic colorectal surgery; M/F, male/female. a(I + II)/ III; b(T1 + T2)/T3.