Evidence map›Paper›PMID 36758961›Full record

ArticleEpidemiology and health2023

Prevalence and methodological quality of systematic reviews in Korean medical journals.

Seong Jung Kim, Mi Ah Han, Jae Hung Jung, Eu Chang Hwang, Hae Ran Kim, Sang Eun Yoon, Seo-Hee Kim, Pius Kim, So-Yeong Kim

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Epidemiology and health, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 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

2 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
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

9 authors.

Seong Jung KimDepartment of Internal Medicine, Chosun University College of Medicine, Gwangju, Korea.
Mi Ah HanDepartment of Preventive Medicine, Chosun University College of Medicine, Gwangju, Korea.
Jae Hung JungDepartment of Urology, Yonsei University Wonju College of Medicine, Wonju, Korea.
Eu Chang HwangDepartment of Urology, Chonnam National University Medical School, Chonnam National University Hwasun Hospital, Hwasun, Korea.
Hae Ran KimDepartment of Nursing, Chosun University College of Medicine, Gwangju, Korea.
Sang Eun YoonDepartment of Public Health, Graduate School, Chosun University, Gwangju, Korea.
Seo-Hee KimDepartment of Preventive Medicine, Chosun University College of Medicine, Gwangju, Korea.
Pius KimDepartment of Neurosurgery, Chosun University College of Medicine, Gwangju, Korea.
So-Yeong KimDepartment of Preventive Medicine, Chosun University College of Medicine, Gwangju, Korea.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study aimed to assess and evaluate the prevalence and methodological quality of systematic reviews (SRs) published in major Korean medical journals (KMJs). The top 15 journals with the highest Korean Medical Citation Index, published between 2018 to 2021, were selected. We assessed the methodological quality of SRs using A Measurement Tool to Assess Systematic Reviews 2 (AMSTAR 2). In total, 126 SRs were included, with an average of 32 SRs being reported annually. The overall prevalence of SRs in KMJs was 2.8%, with an increase from 2.6% in 2018 to 3.4% in 2021. Overall, the methodological quality of SRs was low (9.5% low, 90.5% critically low). More than 80% of the studies adhered to critical domain items such as a comprehensive literature search and risk of bias assessment, but for items such as protocol registration and listing excluded studies and the justification for exclusion, the adherence rate was less than 15%. While the number of SRs in KMJs steadily increased, the overall confidence in the methodological quality was low to critically low. Therefore, in order to provide the best evidence for decision-making in clinical and public health areas, editors, reviewers, and authors need to pay more attention to improving the quality of SRs.

Indexed as

Periodicals as TopicHumansPrevalenceRepublic of KoreaResearch ReportSystematic Reviews as TopicJournal articlesMeta-analysisQuality assessmentSystematic reviews

Identifiers

PMID36758961
PMCPMC10266932

What OpenQuestion holds

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Registered trials

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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.