Table 1.

Demographic and baseline characteristics

Variable*Placebo, n = 38Botulinum toxin type B, n = 39
* None of the differences among the treatment groups was significant for any of the demographic or baseline variables.
Age, y
Mean ± SD52.6 ± 13.356.6 ± 11.7
Median50.256.3
Sex, n (%)
Female26 (68)27 (69)
Male12 (32)12 (31)
Race, n (%)
White38 (100)39 (100)
Height, cm
Mean ± SD169.6 ± 10.9166.5 ± 9.8
Median167.6166.4
Weight, kg
Mean ± SD74.7 ± 17.474.9 ± 15.8
Median74.874.6