Prognostic immune nutritional index-based nutritional stratification enhances recovery and survival in gastric cancer: A randomized controlled trial

Table 7 Postoperative complications & prognosis

Group	Complication rate	Mean hospital stay (days)	6-month survival rate	1-year survival rate	Statistic	P value
Low-risk	10.0% (7/65)	12.3 ± 3.1	96.7% (63/65)	93.8% (61/65)	χ² = 6.42	0.004
Moderate-risk	16.7% (11/65)	11.2 ± 2.9	93.3% (61/65)	90.2% (59/65)	F = 6.89	0.003
High-risk	3.3% (2/65)	9.8 ± 2.4	100% (65/65)	98.5% (64/65)	χ² = 1.89	0.192

Complication rates are presented as percentages. Hospital stay is reported as mean ± SD (days). Survival rates are presented as percentages. P values were adjusted using Bonferroni correction where applicable. Missing data were handled using the linear mixed model.