Table 4:

Fibrosis ratio by time

Group	14 Days	1 Month	3 Months	6 Months
PA (n = 18)	0.2	1.4	10.3	28.6
FBC (n = 18)	1.2	1.2	17	15.1†
Ad-BMP-13 (n = 20)	0.7	29.5*	62.2*	45.1†

Note:—PA indicates the bare platinum coil group; FBC, fibroblast-coated platinum coil group; Ad-BMP-13, bone morphogenetic protein-13 gene transfected fibroblast-coated coil group.

^*Variable is significantly different from other groups (P < .05) at 4 weeks and 3 months.

^†Difference among groups is significant (P < .05) at 6 months.