Effects of Surgery Combined with Different Chemotherapy on Matrix Metalloproteinase-9 and Tissue Inhibitors of Metalloproteinase-1 in Children with Neuroblastoma

Table 3

Chemotherapy effects (n, %).

	Group A (n = 50)	Group B (n = 42)	χ^2
CR	33 (66.00)	33 (78.57)	1.779	0.182
PR	9 (18.00)	7 (16.67)	0.028	0.867
SD	2 (4.00)	0 (0.00)	Fisher	0.498
PD	6 (12.00)	2 (4.76)	0.733	0.392
Total effective rate	42 (84.00)	40 (95.24)	1.929	0.165

CR, complete response; PR, partial response; SD, stable disease; PD, progressive disease.