期刊
PEDIATRICS
卷 138, 期 1, 页码 -出版社
AMER ACAD PEDIATRICS
DOI: 10.1542/peds.2016-0120
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资金
- National Multiple Sclerosis Society, Network of Pediatric MS Centers [HC 0165]
- National Institutes of Health (NIH)
OBJECTIVES: To describe the demographic and clinical characteristics of pediatric multiple sclerosis (MS) in the United States. METHODS: This prospective observational study included children and adolescents with MS. Cases were evaluated across 9 geographically diverse sites as part of the US Network of Pediatric MS Centers. RESULTS: A total of 490 children and adolescents (324 girls, 166 boys) were enrolled; 28% developed symptoms before 12 years of age. The proportion of girls increased with age from 58% (< 12 years) to 70% (>= 12 years). Race and ethnicity as self-identified were: white, 67%; African American, 21%; and non-Hispanic, 70%. Most (94%) of the cases were born in the United States, and 39% had 1 or both foreign-born parents. Fifty-five percent of cases had a monofocal presentation; 31% had a prodrome (most frequently infectious), most often among those aged < 12 years (P <.001). Children aged < 12 years presented more commonly with encephalopathy and coordination problems (P <.001). Sensory symptoms were more frequently reported by older children (ie, those aged >= 12 years) (P <.001); 78% of girls had MS onset postmenarche. The initial Expanded Disability Status Scale score for the group was < 3.0, and the annualized relapse rate was 0.647 for the first 2 years. Interval from symptom onset to diagnosis and from diagnosis to initiation of disease-modifying therapy was longer among those < 12 years of age. CONCLUSIONS: Pediatric MS in the United States is characterized by racial and ethnic diversity, a high proportion of children with foreign-born parents, and differences in clinical features and timing of treatment among those < 12 years of age compared with older children.
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