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Table 5 Comparison of surgical outcomes and postoperative recovery in subgroup analysis

From: Laparoscopic gastrectomy in obese gastric cancer patients: a comparative study with non-obese patients and evaluation of difference in laparoscopic methods

Variable Overall Non-obese Obese
LAG (n = 724) TLG (n = 967) P value LAG (n = 557) TLG (n = 698) P value LAG (n = 167) TLG (n = 269) P value
Operation time (min) 220.2 ± 33.5 210.0 ± 25.6 <0.01 215.4 ± 32.9 205.4 ± 26.1 <0.01 236.0 ± 30.9 221.7 ± 20.0 <0.01
Blood loss (mL) 122.5 ± 39.8 117.1 ± 33.3 <0.01 115.0 ± 35.5 112.1 ± 33.0 0.14 147.5 ± 43.3 130.3 ± 30.2 <0.01
Number of RLN 34.7 ± 9.7 35.4 ± 9.4 0.11 34.6 ± 9.8 35.8 ± 9.8 0.04 34.9 ± 9.4 34.5 ± 8.3 0.64
Time to first flatus (d) 3.4 ± 0.9 3.3 ± 0.8 0.02 3.3 ± 0.8 3.2 ± 0.8 0.17 3.8 ± 0.9 3.5 ± 0.9 <0.01
Time to starting diet (d) 4.4 ± 0.9 4.3 ± 1.1 0.08 4.3 ± 0.9 4.3 ± 1.1 0.63 4.8 ± 1.0 4.5 ± 1.1 <0.01
Postoperative hospital stay (d) 9.3 ± 2.6 9.0 ± 1.9 0.03 9.1 ± 2.5 8.9 ± 2.0 0.12 9.9 ± 2.8 9.4 ± 1.8 0.03
  1. LAG laparoscopic-assisted gastrectomy, TLG totally laparoscopic gastrectomy, RLN Regional lymph nodes