A prevalence study of primary dystonia in eight European countries

  title={A prevalence study of primary dystonia in eight European countries},
  author={Thomas T Warner and Laura Camfield and C. David Marsden and Andrea H. Nemeth and Nigel Hyman and David Harley and J{\"o}rg Wissel and Werner Poewe and Reijo J. Marttila and H. Erjanti and Pierre Burbaud and Alain Lagueny and Christoph Kamm and Thomas Gasser and P. Franz and Elisabete Castelon‐Konkiewitz and I. Trender and A. O. Ceballos‐Baumann and Angelika Nebe and B. Fruedenberg and A. R. Bentivoglio and Emanuele Cassetta and Alberto Albanese and Antonio Curr{\`a} and Laura Vacca and Alfredo Berardelli and Joaquim J. Ferreira and Cristina Sampaio and Vitorina Pass{\~a}o and F. Marti and Eduardo Tolosa and L. E. Claver{\'i}a and Jacinto Duarte and Yoav Ben-Shlomo and Allen T. Newton},
  journal={Journal of Neurology},
There have been few epidemiological studies of dystonia. Most previous studies have provided estimates based on few cases. A European prevalence study was undertaken to provide more precise rates of dystonia by pooling data from eight European countries. Diagnosed cases were ascertained by adult neurologists with specialist movement disorders (and botulinum toxin) clinics. The crude annual period prevalence rate (1996–1997) for primary dystonia was 152 per million (95% confidence interval 142… 

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