Two doses of botulinum toxin type A for the treatment of trigeminal neuralgia: observation of therapeutic effect from a randomized, double-blind, placebo-controlled trial

Table 2 Compare 25U group and 75U group in VAS

Week	Test statistic \|R25 -R75\|	Standard error σR25 -R75	Standard test statistic Z	P
1	−3.696	6.307	-.586	0.558
2	-.229	6.303	-.036	0.971
3	−1.258	6.255	-.201	0.841
4	2.709	6.208	0.436	0.663
5	5.166	6.205	0.833	0.405
6	2.099	6.200	0.339	0.735
7	2.588	6.211	0.417	0.677
8	3.784	6.230	0.607	0.544

Kruskall-Wallis test.
There was no significant difference between 25U and 75U groups throughout the study in the visual analogue scale (VAS) scores.

ISSN: 1129-2377