NRS 6 months after radiofrequency | FRI 6 months after radiofrequency | |||
---|---|---|---|---|
(r) coef. | P-value | (r) coef. | P-value | |
Age | 0.140 | 0.333 | 0.008 | 0.954 |
Duration of pain in months | 0.438 | 0.001* | 0.611 | < 0.001* |
Number of prolapsed discs | -0.194 | 0.176 | -0.147 | 0.308 |
NRS before radiofrequency | 0.299 | 0.035* | 0.366 | 0.009* |
FRI before radiofrequency | 0.014 | 0.922 | 0.241 | 0.092 |
BDNF serum level before radiofrequency in ng/ml | -0.324 | 0.022* | -0.291 | 0.041* |
S100B serum level before radiofrequency in ng/ml | 0.499 | < 0.001* | 0.469 | 0.001* |