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In 42 affected individuals from 11 families with identified mutations, we found that sex was highly associated with age at onset regardless of mutation type; the median age onset for girls was 5 years versus 8 years for boys (<jats:italic>P<\/jats:italic> &lt; 0.0097). We found no association between mutation type and phenotype. \u00a9 2007 Movement Disorder Society<\/jats:p>","DOI":"10.1002\/mds.21785","type":"journal-article","created":{"date-parts":[[2008,1,3]],"date-time":"2008-01-03T17:16:12Z","timestamp":1199380572000},"page":"588-592","source":"Crossref","is-referenced-by-count":43,"title":["Phenotypic spectrum and sex effects in eleven myoclonus\u2010dystonia families with \u03b5\u2010sarcoglycan mutations"],"prefix":"10.1002","volume":"23","author":[{"given":"Deborah","family":"Raymond","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rachel","family":"Saunders\u2010Pullman","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Patricia","family":"de Carvalho 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