Impact of nutritional support on immunity, nutrition, inflammation, and outcomes in elderly gastric cancer patients after surgery

Table 3 Trends in nutritional status

Time point	Weight (kg) in nutritional support group	Weight (kg) in control group	BMI in nutritional support group	BMI in control group	Z value	P value
2 wk after surgery	65.8 ± 3.5	66.1 ± 3.2	24.5 ± 1.8	24.7 ± 1.7	1.53	< 0.05
4 wk after surgery	66.1 ± 3.7	64.8 ± 3.5	24.8 ± 1.9	24.2 ± 1.8	-3.27	< 0.05
6 wk after surgery	66.2 ± 3.8	64.5 ± 3.4	24.9 ± 2.0	23.8 ± 1.9	-1.43	< 0.05

BMI: Body mass index.