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

Table 5 Trends in clinical outcomes

Time point	Length of stay (d) in nutritional support group	Length of stay (d) in control group	Infection rate (%) in nutritional support group	Infection rate (%) in control group	Z value	P value
2 wk after surgery	10.5 ± 2.3	11.8 ± 2.5	15.0%	22.5%	2.11	< 0.05
4 wk after surgery	9.1 ± 1.8	10.7 ± 2.1	12.5%	18.3%	-2.74	< 0.05
6 wk after surgery	8.3 ± 1.8	12.2 ± 2.7	10.0%	25.0%	1.63	< 0.05