Table 3.

Comparison of liver function indexes between the two groups

Group		Control group (n = 132)	Observation group (n = 49)	t	P
ALT (U/L)	Before operation	139.89 ± 3.02	139.78 ± 2.98	-0.220	0.826
	1 week after surgery	54.77 ± 4.93	40.33 ± 2.95	-19.262	< 0.001
	1 month after surgery	32.09 ± 3.65	26.73 ± 3.99	-8.543	< 0.001
AST (U/L)	Before operation	151.80 ± 3.78	151.67 ± 3.45	-0.198	0.844
	1 week after surgery	57.52 ± 8.52	49.73 ± 3.82	-6.161	< 0.001
	1 month after surgery	30.52 ± 3.94	25.51 ± 4.47	-7.328	< 0.001
TBil (µmol/L)	Before operation	328.17 ± 5.16	327.37 ± 4.12	-0.985	0.326
	1 week after surgery	232.29 ± 11.05	128.27 ± 4.00	-64.285	< 0.001
	1 month after surgery	75.45 ± 4.85	51.53 ± 3.65	-31.349	< 0.001
DBiL (µmol/L)	Before operation	182.70 ± 10.46	181.10 ± 12.27	-0.873	0.384
	1 week after surgery	121.39 ± 17.80	83.18 ± 6.10	-14.686	< 0.001
	1 month after surgery	42.64 ± 4.54	27.51 ± 4.56	-19.913	< 0.001