Table 4.

Comparison of nutritional status between the two groups.

Variable	POP	POD-7	POD-14
HB (g/L)
Control group	124.26 ± 10.17	131.46 ± 10.77	136.23 ± 15.73
Observation group	125.37 ± 10.22	146.31 ± 11.63*	159.16 ± 16.12*
Mean difference	124.82 ± 10.20	138.89 ± 11.20	147.70 ± 15.93
t	0.547	3.23	6.71
p	0.581	<0.01	<0.01
ALB (g/L)
Control group	33.81 ± 4.13	35.23 ± 3.11	36.65 ± 4.31
Observation group	33.89 ± 4.27	38.81 ± 3.75*	43.19 ± 4.63*
Mean difference	33.85 ± 4.20	37.02 ± 3.43	39.92 ± 4.47
t	0.178	5.103	6.871
p	0.769	<0.01	<0.01
TRF (g/L)
Control group	1.67 ± 0.21	1.71 ± 0.26	1.75 ± 0.29
Observation group	1.69 ± 0.23	1.83 ± 0.28	1.87 ± 0.30*
Mean difference	1.68 ± 0.22	1.77 ± 0.27	1.81 ± 0.30
t	0.046	0.863	1.712
p	0.901	0.06	<0.01
PAB (mg/L)
Control group	205.37 ± 17.43	233.08 ± 18.67	246.13 ± 20.11
Observation group	206.41 ± 18.31	259.89 ± 22.77*	271.33 ± 24.32*
Mean difference	205.89 ± 17.87	246.49 ± 20.72	258.73 ± 22.22
t	0.438	3.111	5.901
p	0.836	<0.01	<0.01

POP, pre-operation; POD, postoperative day; HB, Hemoglobin; ALB, albumin; PAB, pre-albumin; TRF, transferring; t, t-test compared to the observation group; ^*p < 0.01, compared with the observation group.