PMID- 17531850 OWN - NLM STAT- MEDLINE DCOM- 20070802 LR - 20220409 IS - 0074-7742 (Print) IS - 0074-7742 (Linking) VI - 79 DP - 2007 TI - Multiple sclerosis in Isfahan, Iran. PG - 357-75 AB - BACKGROUND: This survey was planned to study the prevalence and incidence of multiple sclerosis (MS) in Isfahan, Iran and to describe the clinical features of MS in general and in specific subgroups of patients (early-onset, late-onset, familial, and conjugal cases) and to compare our results with other reports. METHODS: A cross-sectional study was conducted from April 5, 2003 to July 31, 2006. All patients known to have definite MS according to McDonald's criteria, alive, resident within Isfahan (a large province of Iran) and members of Isfahan MS Society (IMSS) were included in the study. Demographic and case-related information were recorded. A total number of 1718 definite MS patients (388 men and 1330 women) were identified from IMSS database. RESULTS: The overall period prevalence of MS was 43.8/100,000. Among men the prevalence was 19.2 (95% CI: 17.4-21.2)/100,000 and among women 69.6 (95% CI: 66-73.4)/100,000. A female preponderance of 3.4 existed among these patients. In the year 2005, 143 new cases were diagnosed, resulting in an incidence rate of 3.64/100,000. The mean age of onset was 25.36 +/- 8.6 years (range 5-63 year), and mean duration of disease was 7.1 (+/-5.2) years for men and 6.7 (+/-5) years for women. Sensory and visual disturbances were the most common initial presentations with a prevalence of 51.7% and 47.5%, respectively. Cases identified include: early-onset MS (less than 15 years old at onset) with 87 cases (5%), late-onset MS (over 50 years old at onset) with 20 cases (1.1%), familial MS with 209 cases (12.2%), and conjugal MS with 6 cases (0.5%). CONCLUSION: Isfahan is a medium- to high-risk area for MS, with prevalence higher than what has previously been reported, possibly because of an increase in the incidence rate. Clinical and demographic characteristics were similar to other reports; however, some differences existed. FAU - Saadatnia, Mohammad AU - Saadatnia M AD - Department of Neurology, Isfahan University of Medical Sciences, Isfahan 81744, Iran. FAU - Etemadifar, Masoud AU - Etemadifar M FAU - Maghzi, Amir Hadi AU - Maghzi AH LA - eng PT - Journal Article PL - United States TA - Int Rev Neurobiol JT - International review of neurobiology JID - 0374740 SB - IM MH - Adolescent MH - Adult MH - Age Factors MH - Age of Onset MH - Aged MH - Aged, 80 and over MH - Child MH - Cross-Sectional Studies MH - Demography MH - Family Health MH - Female MH - Humans MH - Incidence MH - Iran/epidemiology MH - Male MH - Middle Aged MH - Multiple Sclerosis/*epidemiology MH - Prevalence MH - Retrospective Studies MH - Sex Factors EDAT- 2007/05/29 09:00 MHDA- 2007/08/03 09:00 CRDT- 2007/05/29 09:00 PHST- 2007/05/29 09:00 [pubmed] PHST- 2007/08/03 09:00 [medline] PHST- 2007/05/29 09:00 [entrez] AID - S0074-7742(07)79016-5 [pii] AID - 10.1016/S0074-7742(07)79016-5 [doi] PST - ppublish SO - Int Rev Neurobiol. 2007;79:357-75. doi: 10.1016/S0074-7742(07)79016-5.