Evidence map›Paper›PMID 26847295›Full record

ArticleYonsei medical journal2016

The Epidemiology of Myasthenia Gravis in Korea.

Hyung Seok Lee, Hye Sun Lee, Ha Young Shin, Young Chul Choi, Seung Min Kim

Abstract read
In one paragraph

Article in Yonsei medical journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

18 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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  12. Hospital and healthcare insurance system record-based epidemiological study of myasthenia gravis in southern and northern China.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2020
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  16. Characteristics of obstructive sleep apnea in myasthenia gravis patients: a single center study.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2019
    Article
  17. Repetitive Nerve Stimulation in MuSK-Antibody-Positive Myasthenia Gravis.Journal of clinical neurology (Seoul, Korea) · 2017
    Article
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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

5 authors.

Hyung Seok LeeDepartment of Neurology, Yonsei University College of Medicine, Seoul, Korea.
Hye Sun LeeDepartment of Biostatistics, Yonsei University College of Medicine, Seoul, Korea.
Ha Young ShinDepartment of Neurology, Yonsei University College of Medicine, Seoul, Korea.
Young Chul ChoiDepartment of Neurology, Yonsei University College of Medicine, Seoul, Korea.
Seung Min KimDepartment of Neurology, Yonsei University College of Medicine, Seoul, Korea. KIMSM@yuhs.ac.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAn epidemiological study of myasthenia gravis (MG) has not been performed in Korea. The purpose of this study was to estimate the prevalence and incidence of MG in Korea. MATERIALS AND

methodsHealth Insurance Review and Assessment (HIRA) data from 2010 to 2014 were searched for MG codes as defined by the International Classification of Diseases, 10th revision. After identifying MG cases, we estimated the prevalence and annual incidence of MG based on the HIRA database and Korean population data.

resultsDuring the study period, 10138 MG cases were identified. The prevalence of MG was 10.42 cases per 100000 people in 2010 and this increased every year to 12.99 cases per 100000 people in 2014. The average incidence of MG between 2011 and 2014 was 0.69 cases per 100000 person-years. The prevalence and incidence were higher in the older (≥ 50 years) age group than in the younger (<50 years) age group [prevalence: 9.26 vs. 19.24 per 100000, relative risk 2.077, 95% confidence interval (CI) 1.976-2.183, p<0.001; incidence: 0.47 vs. 1.18 per 100000, relative risk 2.490, 95% CI 2.006-3.091, p<0.001].

conclusionThis study was the first nationwide population-based epidemiological study of MG in Korea. The prevalence and incidence of MG were consistent with those of previous studies. We found an increase in the prevalence of MG and a predominance of elderly MG patients.

Indexed as

Population SurveillanceAdolescentAdultAgedAged, 80 and overAge DistributionChildChild, PreschoolDatabases, FactualFemaleHumansIncidenceMaleMiddle AgedMyasthenia GravisPrevalenceepidemiologyincidenceKoreaMyasthenia gravisnationwide population-basedprevalence

Identifiers

PMID26847295
PMCPMC4740535

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LicenceCC BY-NC
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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.