{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,20]],"date-time":"2025-10-20T17:31:19Z","timestamp":1760981479490},"reference-count":35,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2006,9,20]],"date-time":"2006-09-20T00:00:00Z","timestamp":1158710400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Euro J of Neurology"],"published-print":{"date-parts":[[2006,10]]},"abstract":"<jats:p>Four hundred and sixty records of patients with primary torsion dystonia (296 women and 164 men) were evaluated. The mean age at disease onset was 48.3\u2003\u00b1\u200317.7\u2003years; 13 patients carried the DYT1 CAG deletion. The distribution of age at onset was represented by a bi\u2010modal curve, with a nadir at 21\u2003year separating early onset from late onset cases. In 15.9% of cases there was a positive family history of dystonia. Cranial, cervical or lower limb onset was more common amongst women (M:F ratios were 1:2.7, 1:1.9, and 1:3); by contrast, onset in the upper limb was more common in men (M:F ratio 2.2:1). As expected, disease progression was more pronounced in cases with early onset; it was reckoned that onset at or above 32\u2003years was associated with a negligible likelihood to progress to a generalized form. The mean age at onset of familial cases was 44.8\u2003\u00b1\u200311.2\u2003years, significantly lower than the mean age at onset of sporadic cases (53.5\u2003\u00b1\u200313.4\u2003years). Familial cases were characterized by more sites involved throughout disease course. Familial cases had a higher tendency to progress to a segmental or generalized form than sporadic cases.<\/jats:p>","DOI":"10.1111\/j.1468-1331.2006.01387.x","type":"journal-article","created":{"date-parts":[[2006,9,20]],"date-time":"2006-09-20T11:06:54Z","timestamp":1158750414000},"page":"1083-1088","update-policy":"http:\/\/dx.doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Onset and progression of primary torsion dystonia in sporadic and familial cases"],"prefix":"10.1111","volume":"13","author":[{"given":"A. E.","family":"Elia","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"G.","family":"Filippini","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A. 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