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Table 2 Comparison of intraoperative index between SILS and CLS for the included studies

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

  Operation time (min) Incision length (cm) Amount of bleeding (ml) Conversion Lymph node resection Distal surgical edge (cm)
First author SILS CLS SILS CLS SILS CLS SILS CLS SILS CLS SILS CLS
Liu [7] 126.9 ± 40.3 106.9 ± 26.7 4.8 ± 1.5 6.8 ± 1.2 46.3 ± 61.1 50.3 ± 39.3 NR NR 21.3 ± 8.1 21 ± 7.5 5.8 ± 2.3 6.6 ± 3.2
Hong [8] 122.3 ± 23.4 137.6 ± 32.4 4.4 ± 3.5 4.8 ± 2.8 NR NR 4 5 18.2 ± 8.1 17.6 ± 8.9 5.8 ± 1.9 6.8 ± 2.3
Bulut [9] 295 (108–465) 264 (125–421) 4 (2.5–12.5) 13.3 (7–19.5) 33 (0–300) 100 (0–650) 2 1 14 (4–33) 19 (7–33) 3.2 (0.5–7.5) 2.5 (1–6.5)
Kim [10] 277 ± 106 309 ± 93 NR NR NR NR 0 2 23.4 ± 15.3 20.9 ± 12.6 6.9 ± 5.5 5.8 ± 4.9
Levic [11] 295 (108–465) 248 (51–431) NR NR 35 (0–400) 100 (0–3142) 5 13 13 (3–33) 16 (1–48) 3 (0.5–7.5) 2.5 (0–9.5)
Tei [12] 198 ± 52.8 210 ± 55 NR NR 34.5 ± 106 24.8 ± 85 1 0 23 ± 10 28 ± 13 2.97 ± 0.85 3.04 ± 0.88
Kwag [13] 135 ± 28 144 ± 22 3.4 ± 1.1 7.3 ± 1.6 251 ± 50 237 ± 49 0 0 19.6 ± 10.7 20.8 ± 7.7 7.5 ± 2.5 9.2 ± 4
Park [14] 118.1 ± 41.5 140 ± 42.2 3.3 ± 0.9 9.1 ± 1.4 NR NR 8 0 14.6 ± 6.8 23.4 ± 11.4 5.1 ± 2.5 5.1 ± 2.6
Nerup [15] 316.5 (294–323.3) 269 (236.5–309) NR NR 50 (0–200) 150 (62.5–250) 0 2 12 (9–17) 12 (7–15) 4 (3.5–5) 4 (2–5)