Table. 2.

Univariate logistic regression of the demographic and baseline clinical factors associated with treatment outcomes for genicular radiofrequency denervation

Variable Odds ratio 95% CI P value
Age (yr) 1.02 0.980, 1.040 0.440
Female
Male
1.22
1 (Ref)
0.685, 2.180 0.498
Smoker
Non smoker
1.14
1 (Ref)
0.621, 2.100 0.667
Employed
Unemployed (retired, housewives, etc)
1.30
1 (Ref)
0.706, 2.410 0.396
Obese
Non-obese
0.905
1 (Ref)
0.506, 1.610 0.735
Depression
No depression
0.243
1 (Ref)
0.112, 0.527 < 0.001
Prior knee surgery
None prior knee surgery
0.659
1 (Ref)
0.364, 1.190 0.169
Opioid use
Yes
No

1 (Ref)
2.817
1.553, 5.110 < 0.001
Duration of pain (yr) 0.98 0.910, 1.060 0.595
Degree of degeneration
KL ≤ 2
KL > 2

0.584
1 (Ref)
0.328, 1.040 0.068
Baseline NRS score 0.75 0.588, 0.958 0.021

P value compares positive outcome vs. negative outcome.

CI: confidence intervals, KL: Kellegren–Lawrence, NRS: numerical rating scale.

Korean J Pain 2022;35:447~457 https://doi.org/10.3344/kjp.2022.35.4.447
© Korean J Pain