Efficacy and Safety of Botulinum Toxin Type A in Treating Patients of Advanced Age with Idiopathic Trigeminal Neuralgia

Table 2

Comparison of VAS scores in older (≥80 years old) and younger (<60 years old) BTX-A therapeutic groups.

	VAS score before treatment (median)	VAS score after treatment (median)		value
Older group	8.5	4.5	−2.680	0.007
Younger group	8.0	5.0	−3.360	0.001
	−1.411	−0.040	—	—
value	0.158	0.968	—	—

: comparison of VAS scores between before treatment and after treatment; : comparison of VAS scores between older group and younger group.