Table 1.

Demographic and clinical characteristics of study population.

	Mean (SD)	95% CI	Range
Age at initial treatment (years)	51.4 (13.0)	49.2 to 53.7	18–78
Age at last treatment (years)	65.8 (12.3)	63.6 to 67.9	34–90
Follow-up (years)	14.5 (3.3)	13.9 to 15.1	10–21
Number of BAT treatments	20.5 (13.7)	18.2 to 22.9	10–57
Min D1S (units)	27.7 (10.0)	23.9 to 31.5	15–45
Max D1S (units)	43.4 (12.5)	38.7 to 48.2	20–80
Mean D1S (units)	32.9 (13.8)	23.9 to 48.2	15–80

Notes. SD = Standard deviation; 95% CI = 95% Confidence interval; BAT = botulinum A toxin; Min D1S = Minimum dose in one session; Max D1S = Maximum dose in one session; Mean D1S = Mean dose in one session.