Table 3.

Predictors of short-term pain relief based on percentage change in Penn Facial Pain Scale-Revised (PFPS-R) items

	Pain intensity items		General ADL interference items		Facial ADL interference items		All PFPS-R items
	Univariate	Multivariate	Univariate	Multivariate	Univariate	Multivariate	Univariate	Multivariate
Dose rate (Gy/min)	0.034	0.048	0.002	0.003	0.034	0.054	0.011	0.023
BED	0.035	0.049	0.001	0.003	0.048	0.047	0.012	0.025
Age	0.969		0.352		0.408		0.209	0.166
Brainstem dose (Gy)	0.897		0.832		0.786		0.741
Dx: TN1 vs. TN2	0.940		0.750		0.578		0.736
Dx: TN1/2 vs. other	0.174	0.157	0.551		0.105	0.101	0.342
Prior intervention	0.857		0.300	0.403	0.862		0.366
Sex	0.142	0.189	0.130	0.271	0.876		0.022	0.030

Table values are p-values of corresponding t-statistics, shown separately for univariate and multivariate regression models, where statistically-significant predictors on multivariate analysis are marked in bold. ADL: activities of daily living; TN 1/2: trigeminal neuralgia type 1/type 2, dx: diagnosis.