Table 3.

Outcomes following onaBoNT-A injections for hand tremor (n = 91).

	First Injection (n)	Last Injection (n)	p *
Mean onaBoNT-A units	65.0 ± 31.2 (91)	78.6 ± 51.1 (91)	0.002
Mean global rating	3.0 ± 1.3 (91)	3.2 ± 1.2 (91)	0.06
Mean peak effect	3.2 ± 1.3 (91)	3.4 ± 1.1 (91)	0.18
Moderate or marked benefit (score of 3 or 4)
Global rating	74.7%	80.2%	-
Peak effect	80.2%	85.7%	-
Mean latency of response, days	4.5 ± 4.3 (81)	3.8 ± 3.0 (78)	0.10
Mean total duration of response, weeks †	12.7 ± 3.6 (46)	12.8 ± 2.8 (37)	0.87

OnaBoNT-A = onabotulinumtoxin-A. * p < 0.05 indicating a statistically significant result. ^† Data not included for patients with persistent response (27 versus 41) or lack of data (18 versus 13) at the time of follow-up after the first and last injection.