Evidence map›Paper›PMID 33304714›Full record

ArticleJournal of general and family medicine2020

Data resource profile: JMDC claims databases sourced from Medical Institutions.

Katsuhiko Nagai, Takashi Tanaka, Norihisa Kodaira, Shinya Kimura, Yoshimitsu Takahashi, Takeo Nakayama

Abstract read
In one paragraph

Article in Journal of general and family medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed
–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

61 citing papers in PubMed.

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  16. Epidemiology and infection · 2025
    Article
  17. Article
  18. Author response to: OSIN-D-24-01586, "Revisiting the safety of romosozumab in Japan: the need for clear contraindications for patients with cardiovascular risk".Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2025
    Article
  19. Article
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1 more citing papers are in PubMed but not listed here.

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

6 authors.

Katsuhiko NagaiJMDC Inc. Tokyo Japan.ORCID https://orcid.org/0000-0001-8900-6019
Takashi TanakaJMDC Inc. Tokyo Japan.
Norihisa KodairaJMDC Inc. Tokyo Japan.
Shinya KimuraJMDC Inc. Tokyo Japan.
Yoshimitsu TakahashiDepartment of Health Informatics Kyoto University School of Public Health Kyoto Japan.
Takeo NakayamaDepartment of Health Informatics Kyoto University School of Public Health Kyoto Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

JMDC, Inc. (JMDC) has created a database, using data collected from medical institutions in Japan, consisting of claims (for hospitalization and outpatient treatment), diagnosis procedure combination (DPC) assessment forms, and clinical laboratory test values. The oldest data in this database that can be accessed relate to treatment in April 2014. Currently (the end of October 2019), the number of medical institutions is 218, consisting of 131 DPC-eligible hospitals and 87 DPC-ineligible hospitals. Using this database, it is possible to carry out an analysis that makes up for certain limitations of JMDC's another database of data from health insurance societies (eg, the disease status and test results cannot be ascertained, and there is insufficient access to data for elderly people). In addition, it is noteworthy that this database includes not only data from DPC-eligible hospitals but also data from some DPC-ineligible hospitals.

Indexed as

databaseDPChealth insuranceJapanmedical institutions

Identifiers

PMID33304714
PMCPMC7689231

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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.