Table 2.
Basic efficacy outcomes of patient on admission.
| Control group (n = 18) |
PRF group (n = 15) |
Difference (SE) |
95% CI | P | |
|---|---|---|---|---|---|
| CPT (uA) | 13.68 ± 6.12 | 17.21 ± 9.43 | −3.52 (2.72) | (−9.07,2.03) | 0.205 |
| PEC (uA) | 66.61 ± 18.12 | 81.55 ± 42.37 | −14.95 (11.01) | (−37.4,7.5) | 0.184 |
| PR | 5.36 ± 1.53 | 5.32 ± 2.19 | 0.03 (0.65) | (−1.29,1.36) | 0.96 |
| PD-PP | 435.56 ± 152.93 | 431.93 ± 219.1 | 3.62 (64.93) | (−128.8,136.1) | 0.956 |
| VAS-PP (mm) | 60.83 ± 7.91 | 60.00 ± 8.24 | 0.83 (2.82) | (−4.91,6.58) | 0.769 |
| PD-BTP | 427.78 ± 46.09 | 426.67 ± 45.74 | 0.01 (0.16) | (−0.32,0.34) | 0.945 |
| VAS-BTP (mm) | 76.11 ± 5.57 | 76.40 ± 5.49 | −0.29 (1.93) | (−4.23,3.66) | 0.882 |
| SF-Mcgill | |||||
| Sensory score | 5.61 ± 0.61 | 5.20 ± 0.77 | 0.41 (0.24) | (−0.80,0.90) | 0.097 |
| Effective score | 3.60 ± 1.10 | 3.60 ± 0.91 | −0.44 (0.35) | (−0.77,0.68) | 0.901 |
| Total score | 9.22 ± 1.14 | 8.80 ± 1.37 | 0.42 (0.43) | (−0.46,1.30) | 0.337 |
| VAS (mm) | 60.83 ± 7.91 | 60.00 ± 8.24 | 0.83 (2.82) | (−4.91,6.58) | 0.769 |
| PPI | 4.00 ± 0.59 | 3.87 ± 0.35 | −0.13 (0.17) | (−0.22,0.49) | 0.451 |
| NRSSIS | 5.11 ± 0.58 | 3.80 ± 0.56 | 1.31 (0.20) | (0.90,1.72) | 0.101 |
PRF: pulsed radiofrequency; CPT: current perception threshold; PEC: pain equivalent current; PR: pain ratio; PD: pain degree; PP: persistent pain; VAS: visual analog scale; BTP: breakthrough pain; SF-Mcgill: short form Mcgill pain questionnaire; PPI: present pain intensity; NRSSIS: numeric rate scale sleep interference score; SE: standard error; CI: confidence interval.