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

Table 3 Temporal changes in body mass index, serum albumin, and Prognostic Inflammatory and Nutritional Index scores across risk groups

Group	Pre-op BMI	1W Post-op	1M Post-op	1Y Post-op	BMI Δ	Pre-op Albumin	1W Post-op	1M Post-op	1Y Post-op	Albumin Δ	Pre-op PINI	1W Post-op	1M Post-op	1Y Post-op	PINI Δ
Low-risk	23.8 ± 2.0	22.9 ± 1.8	23.2 ± 1.7	23.6 ± 1.5	-0.2 ± 0.2	42.3 ± 4.5	43.0 ± 4.3	43.8 ± 4.0	44.2 ± 3.9	+1.9 ± 1.2	1.2 ± 0.2	1.1 ± 0.2	0.9 ± 0.2	0.8 ± 0.1	-0.4 ± 0.2
Moderate-risk	23.6 ± 2.1	23.0 ± 2.0	23.5 ± 1.8	23.9 ± 1.6	-0.1 ± 0.3	41.5 ± 5.2	43.5 ± 4.9	44.7 ± 4.5	45.3 ± 4.3	+3.8 ± 1.6	2.5 ± 0.3	2.1 ± 0.3	1.8 ± 0.3	1.5 ± 0.2	-1.0 ± 0.3
High-risk	23.4 ± 2.3	23.1 ± 2.1	23.7 ± 2.0	24.2 ± 1.8	+0.1 ± 0.21	40.2 ± 5.0	45.0 ± 4.4	46.8 ± 4.2	47.5 ± 3.8	+6.5 ± 2.31	4.6 ± 0.4	3.8 ± 0.3	3.2 ± 0.3	2.7 ± 0.2	-1.9 ± 0.41

¹Indicates statistically significant difference compared to other groups (P < 0.01). This table summarizes longitudinal changes in body mass index, serum albumin levels, and Prognostic Inflammatory and Nutritional Index scores across low-, moderate-, and high-risk groups. Values represent mean ± SD. “Improvement” denotes change from baseline.

BMI: Body mass index; PINI: Prognostic Inflammatory and Nutritional Index.