Table 1.

Demographic and baseline characteristics

Variable*Placebo, n = 36Botulinum toxin type B
5,000 U, n = 3610,000 U, n = 37
* None of the differences among the treatment groups was significant for any of the demographic or baseline variables.
† Based on a total number of observations of 36.
Age, y
Mean ± SD54.3 ± 12.257.6 ± 12.356.2 ± 11.8
Median55.957.854.8
Sex, n (%)
Female21 (58)18 (50)28 (76)
Male15 (42)18 (50)9 (24)
Race, n (%)
White32 (89)35 (97)33 (89)
Other4 (11)1 (3)4 (11)
Height, cm
Mean ± SD169.5 ± 9.1169.2 ± 9.0167.0 ± 9.8
Median168.3170.2164.5
Weight, kg
Mean ± SD74.5 ± 14.777.0 ± 17.374.5 ± 16.0
Median76.074.472.8