Significance of 125I radioactive seed implantation on growth differentiation factor and programmed death receptor-1 during treatment of oral cancer

Table 3 Comparison of efficacy between the two groups, n (%)

	Research group (n = 89)	Control group (n = 95)	χ2	P value
CR	33 (37.08)	20 (21.05)
PR	35 (39.33)	38 (40.00)
NC	15 (16.85)	22 (23.16)
PD	6 (6.74)	15 (15.79)
Cure rate (%)			5.017	0.025
	76.40	61.05

CR: The tumor focus completely disappeared and lasted for more than 4 wk; PR: The tumor focus was reduced by more than 50% and maintained for more than 4 wk, and no new lesions occurred; NC: The tumor volume was reduced by < 50%, increased by < 20% and maintained for more than 4 wk, and no new lesions were found; PD: The tumor focus increased by more than 20% and a new lesion appeared.