Table 3:

Summarized histologic scores^*

Group	14 Days	1 Month	3 Months	6 Months	Group Total Score (All Time Points)
PA (n = 18)	2.5 ± 1.1	3.1 ± 2.5	5.4 ± 1.4	6.8 ± 1.6	4.7 ± 2.4†
FBC (n = 18)	7.3 ± 1.9	4.7 ± 2.8	7.4 ± 2.5	6.7 ± 2.0	6.3 ± 2.4
Ad-BMP-13 (n = 20)	6.0 ± 1.6	6.6 ± 1.8	8.0 ± 1.3	6.7 ± 1.0	6.8 ± 1.6

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

^*Data are represented as mean±SD.

^†PA significantly less than FBC or Ad-BMP-13.