Table 6.

Immune parameters of patients in 3 groups before and after surgery

Groups	Lymphocytes (×109/L)	CD3 (%)	CD4 (%)	CD8 (%)	CD4/CD8	NK cells (%)
EEN group
1 d before surgery	1.58 ± 0.61	59.6 ± 8.5	39.5 ± 4.8	23.7 ± 6.7	1.67 ± 0.57	15.8 ± 3.9
3 d after surgery	1.24 ± 0.33**	52.1 ± 6.4**	25.6 ± 7.2**	17.6 ± 5.8**	1.45 ± 0.67	12.3 ± 3.2**
7 d after surgery	1.41 ± 0.36	57.4 ± 5.2	38.9 ± 5.1	22.6 ± 3.1	1.72 ± 0.20	13.9 ± 4.7
TPN group
1 d before surgery	1.60 ± 0.72	60.4 ± 7.9	40.1 ± 5.2	24.2 ± 7.1	1.66 ± 0.63	15.1 ± 5.2
3 d after surgery	1.22 ± 0.41**	51.9 ± 8.1**	27.1 ± 6.6**	18.9 ± 6.9**	1.43 ± 0.64	11.3 ± 4.7**
7 d after surgery	1.33 ± 0.38	54.2 ± 6.3**	32.3 ± 4.7**	20.2 ± 5.3	1.60 ± 0.25	12.6 ± 3.6*
EN+PN group
1 d before surgery	1.59 ± 0.58	58.4 ± 6.9	39.8 ± 4.9	23.5 ± 6.4	1.69 ± 0.58	14.9 ± 3.8
3 d after surgery	1.23 ± 0.36**	52.7 ± 6.8**	26.4 ± 5.3**	18.3 ± 8.0**	1.44 ± 0.77	11.9 ± 4.5**
7 d after surgery	1.61 ± 0.21	59.1 ± 7.3	40.3 ± 6.1	24.5 ± 6.7	1.79 ± 0.39	15.9 ± 3.3

^*P < 0.05, 3 and 7 days after surgery vs 1 day before surgery.

^**P < 0.01, 3 and 7 days after surgery vs 1 day before surgery.