Table 3.

Univariate and multivariate logistic regression analysis for predictors of outcome (as defined by initial post-operative BNI score I or II and no recurrence on long-term follow-up) for percutaneous surgery. Significant predictors are in bold (P < .05)

Variable	Univariate analysis				Multivariate analysis
		95% CI				95% CI
	Odds ratio	Low	High	P	Odds ratio	Low	High	P
Older age	1.056	1.015	1.098	.007	1.055	1.014	1.098	.008
Male sex	0.739	0.346	1.577	.43
Right side	1.347	0.641	2.827	.43
V1 pain	1.634	0.763	3.499	.21
V2 pain	1.5	0.603	3.732	.38
V3 pain	0.641	0.306	1.342	.24
Pre-operative TN duration (years)	0.995	0.951	1.041	.83
Dense/bothersome post-operative numbness	5.171	1.266	21.12	.022	5.106	1.187	21.972	.029