Effect of double-tract reconstruction and laparoscopic proximal gastrectomy on immune function and stress

Table 4 Nutritional parameters of two groups

Indicators	Research group (n = 39)	Control group (n = 39)	t	P value
Alb (g/L)
Before surgery	36.51 ± 4.23	35.49 ± 3.20	1.201	0.234
1 month after surgery	38.72 ± 3.68a	38.74 ± 2.41a	0.028	0.977
2 months after surgery	41.15 ± 2.95b	38.72 ± 2.99b	3.613	< 0.001
3 months after surgery	42.79 ± 3.18b	40.08 ± 3.14b	3.787	< 0.001
Hb (g/L)
Before surgery	129.08 ± 13.70	127.18 ± 13.31	0.621	0.536
1 month after surgery	131.56 ± 12.94	131.36 ± 13.13	0.068	0.946
2 months after surgery	134.21 ± 11.08	128.95 ± 7.39	2.466	0.016
3 months after surgery	135.87 ± 11.16a	130.41 ± 9.57	2.319	0.023
BMI (kg/m2)
Before surgery	21.69 ± 2.03	21.72 ± 1.70	0.071	0.944
1 month after surgery	21.72 ± 2.01	21.46 ± 1.96	0.578	0.565
2 months after surgery	22.62 ± 2.60	21.23 ± 1.46	2.911	0.005
3 months after surgery	23.05 ± 2.69a	20.15 ± 1.91b	5.489	< 0.001

^aP < 0.05, compared with before surgery.

^bP < 0.01, compared with before surgery.

Alb: Albumin; Hb: Hemoglobin; BMI: Body mass index.