Cervical Dystonia Dataset

This dataset in from Table 6.9 of Statistical Methods for the Analysis of Repeated Measurements by Charles S. Davis, pp. 161-163 (Springer, 2002) obtained here. These data are from a multicenter, randomized controlled trial of botulinum toxin type B (BotB) in patients with cervical dystonia from nine U.S. sites.

Randomized to placebo (N=36), 5000 units of BotB (N=36), 10,000 units of BotB (N=37)
Response variable: total score on Toronto Western Spasmodic Torticollis Rating Scale (TWSTRS), measuring severity, pain, and disability of cervical dystonia (high scores mean more impairment)
TWSTRS measured at baseline (week 0) and weeks 2, 4, 8, 12, 16 after treatment began

Frank E Harrell Jr

Last modified: Mon May 5 10:19:20 EDT 2003