Table 2 Analysis of the two groups’ clinical results after surgery (\( \overline{x}\kern0.5em \pm \kern0.5em \mathrm{s} \))

Operation time (min)

244 ± 42

260 ± 50

0.482

Intraoperative blood loss (ml)

155 ± 55

150 ± 60

0.553

Quantities of lymph node cleared out (per case)

15 ± 9

14 ± 10

0.142

Quantities of gastric juice drainage for 5 days before surgery (ml)

730 ± 150

210 ± 120

0.001

Duration in hospital (days) after surgery

13 ± 4

13 ± 7

0.128