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Prevalence of joint hypermobility syndrome in Oman
The aim of this article is to document the prevalence of joint hypermobility and joint hypermobility syndrome (JHS) among young adults (aged 16–45 years) in a previously unstudied Middle Eastern population using observational and consecutive case studies. From 1 March to 1 April 2007, 222 young Omani men and women were interviewed at the Sohar Regional Hospital in Sohar, Oman, and examined for the five recognized features of hypermobility (i.e. laxity of the thumbs, little fingers, elbows, spine and knees) as well as 15 other musculoskeletal features. Approximately 45% of the study cohort had at least one lax joint, but only 4% possessed all five features of JHS and JHS could be diagnosed in only 6.3% of subjects. The women studied were older than the men (P<0.001), more overweight (P<0.05) and almost twice as likely to have JHS. A very high frequency (86%) of Marfanoid features was found among subjects with joint hypermobility. JHS in association with Marfanoid features appears to be a cause of musculoskeletal problems in Oman that is frequently unrecognized and may be almost twice as common in women than men.