Impact of minimally invasive surgery on immune function and stress response in gastric cancer patients

Table 1 Comparison of surgical parameters between two groups, mean ± SD

Group	Number of cases	Surgical incision (cm)	Intraoperative blood loss (mL)	Surgical duration (min)	Number of lymph nodes dissected
Minimally invasive surgery group	102	5.06 ± 2.11	133.87 ± 22.96	175.42 ± 23.15	15.27 ± 1.36
Open surgery group	101	7.59 ± 2.53	215.48 ± 30.61	232.59 ± 28.06	13.87 ± 1.28
t value		5.743	13.785	9.263	5.107
P value		< 0.001	< 0.001	< 0.001	< 0.001