Effect of postoperative early enteral nutrition on clinical outcomes and immune function of cholangiocarcinoma patients with malignant obstructive jaundice

Table 3 Comparison of operation methods and relevant data

Basic data	EEN + PN group, n = 26	TPN group, n = 30	t or χ2	P value
Operation methods by case
Pancreatoduodenectomy	12	20	2.393	0.1222
Choledochojejunostomy	14	10
Operative duration in h, mean ± SD	3.27 ± 0.88	2.84 ± 0.90	1.802	0.0771
Amount of bleeding in mL, mean ± SD	476.00 ± 187.71	524.00 ± 169.61	1.005	0.3191
NRS score on the first day after operation by score, mean ± SD	4.25 ± 0.74	4.21 ± 0.88	0.183	0.8561

¹t-test.

²Chi-square test.

EEN: Early enteral nutrition; NRS: Nutrition risk screening; PN: Parenteral nutrition; SD: Standard deviation; TPN: Total parenteral nutrition.