Table 3

Linear regression for primary effectiveness endpoint of reduction in NRS at 3 months on possible predictors

Source	Estimate	SE	95% CI	P value
Intercept	−3.360	1.594	−6.484 to −0.235	0.04
Treatment group (CRFA)	2.058	0.335	1.402 to 2.714	<0.0001
Age	0.026	0.013	0.001 to 0.052	0.046
Sex (female)	0.474	0.396	−0.302 to 1.251	0.23
Duration of diagnosis	−0.001	0.001	−0.003 to 0.002	0.56
BMI	0.056	0.031	−0.005 to 0.117	0.07
Response to blocks	0.006	0.010	−0.013 to 0.026	0.54
Baseline opioid use (yes)	−0.276	0.347	−0.956 to 0.404	0.43

BMI, body mass index; CRFA, cooled radiofrequency ablation; NRS, Numeric Rating Scale.