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Published on: December 9, 2015
Epidemiology of multiple sclerosis in the pediatric population of Sardinia, Italy
Silvia Dell'Avvento1, Maria Alessandra Sotgiu2, Salvatorica Manca3
1Department of Clinical and Experimental Medicine, Section of Child Neuropsychiatry, University of Sassari, Sassari, Italy. silviagem85@hotmail.it.
Insights
Pediatric multiple sclerosis (pMS) incidence in northern Sardinia is significantly higher than global averages. This study reveals high pMS and clinically isolated syndrome (CIS) prevalence in Sardinian children.
Area of Science:
- Neurology
- Epidemiology
- Pediatrics
Background:
- Multiple sclerosis (MS) is a chronic inflammatory demyelinating disease of the central nervous system.
- Sardinia has one of the highest adult MS risks globally, but pediatric data were lacking.
- Pediatric MS (pMS) affects children and adolescents, with limited epidemiological data available worldwide.
Purpose of the Study:
- To estimate the incidence and prevalence of pediatric MS (pMS) in northern Sardinia.
- To assess pMS and clinically isolated syndrome (CIS) rates in the pediatric population (0-18 years).
Main Methods:
- Retrospective study analyzing cases from January 1, 2001, to December 31, 2012.
- Inclusion criteria: diagnosis of optic neuritis, myelitis, ADEM, demyelinating disorders, MS, or CIS according to McDonald criteria with disease onset between 0-18 years.
- Calculation of annual mean incidence and prevalence per 100,000 pediatric population.
Main Results:
- 21 cases of pMS and 5 cases of CIS were identified in northern Sardinia.
- The annual mean pMS incidence was 2.85 per 100,000 pediatric population.
- The pMS and CIS prevalence on December 31, 2012, was 26.92 and 6.41 per 100,000, respectively.
Conclusions:
- Pediatric MS incidence in Sardinia is significantly higher than reported globally.
- The findings corroborate the high MS risk observed in the adult Sardinian population.
- Sardinia exhibits among the highest pediatric MS prevalence rates worldwide.
Abstract:
Multiple sclerosis (MS) is a chronic inflammatory demyelinating disease of the central nervous system (CNS). Several authors report MS affecting not only young adults but also children and adolescents. Sardinia is one of the regions at the highest risk for MS worldwide in the adult population; to date, no definite data exist on the pediatric population. The aim of this study was to estimate the incidence and prevalence of pediatric MS (pMS) in northern Sardinia. Patients with diagnosis of optic neuritis, myelitis, acute disseminated encephalomyelitis (ADEM), demyelinating disorders, MS, or clinically isolated syndrome (CIS) according to McDonald criteria were enrolled, when disease onset occurred within the range of 0-18 years. From January 1, 2001 to December 31, 2012, 21 cases of pMS and 5 cases of CIS were found in northern Sardinia. The annual mean pMS incidence was 2.85 cases per 100,000 pediatric population, and the annual mean CIS incidence was 0.68 cases per 100,000 pediatric population. The pMS and CIS prevalence computed on 31 December 2012 was 26.92 and 6.41 per 100,000 pediatric population, respectively.
Conclusion:
Our pMS data among Sardinians corroborate the epidemiological scenario described in the adult population being the incidence estimates significantly higher than those reported elsewhere.
What Is Known:
Sardinia is one of the regions at the highest risk for MS worldwide in the adult population. To date, no definite data exist on the pediatric population.
What Is New:
The pediatric MS incidence in Sardinia is estimated to be significantly higher than those reported elsewhere. The pediatric MS prevalence in Sardinia is among the highest values worldwide.
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