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Urban prevalence of multiple sclerosis in China: A population‐based study in six provinces
Author(s) -
Xu Lu,
Chen Lu,
Wang Shengfeng,
Feng Jingnan,
Liu Lili,
Liu Guozhen,
Wang Jinxi,
Zhan Siyan,
Fan Dongsheng
Publication year - 2021
Publication title -
european journal of neurology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.881
H-Index - 124
eISSN - 1468-1331
pISSN - 1351-5101
DOI - 10.1111/ene.14764
Subject(s) - medicine , demography , residence , epidemiology , confidence interval , population , mainland china , census , china , prevalence , environmental health , pediatrics , geography , archaeology , sociology
Background and purpose Multiple sclerosis (MS) is a rare neurological disease addressed by only few epidemiological studies in China. This population‐based study aimed to estimate the prevalence of MS in China by using national medical insurance databases. Methods Data from the Urban Employee Basic Medical Insurance database and the Urban Residence Basic Medical Insurance database, which were collected during 2012 to 2016 and included approximately 0.20 billion residents in six provinces, were used in this population‐based study. The prevalent patients with MS were identified via diagnostic text or disease codes. Results The crude prevalence in 2016 was 2.44 per 100,000 population (95% confidence interval (CI) 2.18–2.72), with the prevalence in females being higher than that in males. The standardized prevalence (based on 2010 Chinese census data) was 2.29 (95% CI 2.21–2.38). The prevalence in both sexes in 2016 increased up to the age range of 30–34 years. Subsequently, the female prevalence declined with increasing age, but male prevalence stabilized with increasing age. During the 5‐year time period, prevalence ranged from 2.32 (95% CI 2.06–2.60) in 2015 to 2.91 (95% CI 2.39–3.47) in 2012. Conclusions The prevalence of MS in China was lower than that in Europe and North America. The temporal trend of prevalence in China was also observed to be stable. As the first prevalence study of MS in mainland China, this population‐based study can provide useful information for worldwide healthcare services and prevention of MS.

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