Evidence map›Paper›PMID 33941642›Full record

ArticleStroke and vascular neurology2021

Incidence and prevalence of moyamoya disease in urban China: a nationwide retrospective cohort study.

Yixin Sun, Guoyu Zhou, Jingnan Feng, Lu Chen, Guozhen Liu, Jinxi Wang, Qingliang Wang, Junyou Yu, Xiwang Yang, Zheng Yang and 3 more

Open access · goldAbstract read
In one paragraph

Article in Stroke and vascular neurology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 3 pooled it
6.1field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

27 citing papers in PubMed, 3 syntheses or guidelines pooled it, 47 citations in OpenAlex.

  1. Pooled it
  2. Sex differences in cardiovascular disease and dysregulation in Down syndrome.American journal of physiology. Heart and circulatory physiology · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 3 institutions in 1 country.

Yixin Sun *Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Centre, Beijing, China.ORCID 0000-0002-4879-0529
Guoyu Zhou *Department of Geriatric Neurology, Qilu Hospital of Shandong University, Jinan, China.
Jingnan FengDepartment of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Centre, Beijing, China.
Lu ChenDepartment of Neurology, Peking University Third Hospital, Beijing, China.
Guozhen LiuPeking University Health Information Technology Co. Ltd, Beijing, China.
Jinxi WangBeijing Healthcom Data Technology Co. Ltd, Beijing, China.
Qingliang WangDepartment of Medical Affairs, Qilu Hospital of Shandong University, Jinan, China.
Junyou YuDepartment of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Centre, Beijing, China.
Xiwang YangDepartment of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Centre, Beijing, China.
Zheng YangDepartment of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Centre, Beijing, China.
Pei GaoDepartment of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Centre, Beijing, China.
Shengfeng WangDepartment of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Centre, Beijing, China Siyan-zhan@bjmu.edu.cn shengfeng1984@126.com.
Siyan ZhanDepartment of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Centre, Beijing, China Siyan-zhan@bjmu.edu.cn shengfeng1984@126.com.
Peking University · CNQilu Hospital of Shandong University · CNDigital China Health (China) · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectiveMoyamoya disease (MMD) is an increasingly recognised cause of stroke, mainly described in East Asia. China is the largest nation in Asia, but few studies reported the epidemiology of MMD, especially at a national level. We aimed to estimate the incidence and prevalence of MMD in China.

methodsWe performed a population-based study using data from the national databases of Urban Basic Medical Insurance between 2013 and 2016, covering approximately 0.50 billion individuals. MMD cases were identified by diagnostic code (International Classification of Diseases, 10th Revision I67.5) or related diagnostic text.

resultsA total of 1987 MMD patients (mean age 44.45±14.30 years, female-to-male ratio 1.12) were identified, representing a national crude incidence of 0.59 (95% CI: 0.49 to 0.68) and a prevalence of 1.01 (95% CI: 0.81 to 1.21) per 100 000 person-years in 2016. Rates were higher in females than in males for the incidence (0.66 vs 0.52) and prevalence (1.05 vs 0.90). And the age-specific rates showed a bimodal distribution, with the highest peak in middle-aged group and the second peak in child group.

conclusionsOur results confirm that MMD is relatively common in East Asians, but the rates in China were lower than those in other East Asian countries such as Japan and Korea. The unique epidemiological features, including a relatively weak female predominance and a shift in the highest peak of incidence from children to adults, revealed new sight into MMD. Further research is expected to explore the potential pathogenesis of MMD.

Indexed as

Moyamoya DiseaseAdultChildChinaFemaleHumansIncidenceMaleMiddle AgedPrevalenceRetrospective Studiesincidencemedical insurance databasemoyamoya diseaseprevalence

Identifiers

PMID33941642
PMCPMC8717778
OpenAlexW3157677508

What OpenQuestion holds

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LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.