Therapeutic effects of Buzhong Yiqi decoction in patients with spleen and stomach qi deficiency after routine surgery and chemotherapy for colorectal cancer

Table 5 Comparison of tumor biological indexes before and after treatment (mean ± SD)

Group	CEA (ng/mL)		CA19-9 (U/mL)		VEGF (ng/mL)		TSGF (U/mL)
	1 d preoperatively	14 d postoperatively	1 d preoperatively	14 d postoperatively	1 d preoperatively	14 d postoperatively	1 d preoperatively	14 ds postoperatively
Control group (n = 50)	27.11 ± 5.72	22.12 ± 4.79a	46.31 ± 5.78	40.32 ± 4.78a	60.28 ± 10.97	40.31 ± 8.12a	74.31 ± 7.26	69.28 ± 6.14a
Observation group (n = 50)	26.58 ± 5.87	18.33 ± 4.13a	45.87 ± 5.43	36.53 ± 4.01a	61.09 ± 11.76	31.53 ± 9.46a	73.29 ± 7.53	63.28 ± 6.03a
t value	0.671	4.428	0.148	4.420	0.811	4.905	0.160	4.777
P value	0.504	< 0.001	0.883	< 0.001	0.42	< 0.001	0.873	< 0.001

^aP < 0.05 vs before treatment.

CA19-9: Cancer antigen 19-9; CEA: Carcinoembryonic antigen; TSGF: Tumor specific growth factor; VEGF: Vascular endothelial growth factor.