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Sharp increase in the incidence and prevalence of multiple sclerosis in Isfahan, Iran.
MedLine Citation:
PMID:  21459809     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Background: The epidemiology of multiple sclerosis (MS) has changed in recent decades. Objectives: This study aimed to give an update on the prevalence and incidence of MS in Isfahan, Iran. Methods: The study population was all residents of Isfahan province during the period from April 2003 to July 2010. In April 2003, a registry of MS patients was created at the Isfahan MS Society (IMSS), which is the only referral center for MS patients in the province. Nearly all MS patients in Isfahan province are now registered with IMSS and were included in the analysis. Results: Among the 3522 registered patients, 2716 were female and 806 were male (sex ratio: 3.37 : 1), and 431 were diagnosed in 2009. This results in a prevalence figure of 73.3 (95% CI: 70.9-75.8) and an incidence of 9.1 (95% CI: 8.3-10.0) per 100,000. Conclusion: The reported prevalence and incidence figures in our study were higher than in our previous report of 2007, in which the prevalence and incidence of MS were reported to be 43.8 and 3.64 per 100,000, respectively. This dramatic increase in the prevalence of MS puts Isfahan amongst the regions with the highest prevalence of MS in Asia and Oceania and is mostly due to changing environmental factors, amongst which vitamin D deficiency seems an important factor in our population.
Authors:
Masoud Etemadifar; Amir-Hadi Maghzi
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-4-1
Journal Detail:
Title:  Multiple sclerosis (Houndmills, Basingstoke, England)     Volume:  -     ISSN:  1477-0970     ISO Abbreviation:  -     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-4-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9509185     Medline TA:  Mult Scler     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Medical School/ Department of Neurology, Isfahan University of Medical Sciences, Isfahan, Iran.
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