Evidence map›Paper›PMID 30307126›Full record

Observational studyJournal of diabetes investigation2019

Actual condition survey regarding mismatch of measurements between radioimmunoassay and enzyme-linked immunosorbent assay tests for anti-glutamic acid decarboxylase antibody in real-world clinical practice.

Yoichi Oikawa, Takuma Kondo, Akira Shimada, Yutaka Seino, Masafumi Kitaoka

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in Journal of diabetes investigation, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.4field-weighted citation impact, top 30% 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

7 citing papers in PubMed, 7 citations in OpenAlex.

  1. Update on slowly progressive type 1 diabetes.Journal of diabetes investigation · 2025
    Article
  2. Trends in endogenous insulin secretion capacity and anti-islet autoantibody titers in two childhood-onset slowly progressive insulin-dependent diabetes mellitus cases.Clinical pediatric endocrinology : case reports and clinical investigations : official journal of the Japanese Society for Pediatric Endocrinology · 2024
    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 at 3 institutions in 1 country.

Yoichi OikawaCommittee for Optimization of Medical Equipment and Pharmaceuticals, Japan Association for Diabetes Education and Care, Tokyo, Japan.ORCID http://orcid.org/0000-0003-1524-6751
Takuma KondoCommittee for Optimization of Medical Equipment and Pharmaceuticals, Japan Association for Diabetes Education and Care, Tokyo, Japan.
Akira ShimadaDepartment of Endocrinology and Diabetes, School of Medicine, Saitama Medical University, Saitama, Japan.
Yutaka SeinoCommittee for Optimization of Medical Equipment and Pharmaceuticals, Japan Association for Diabetes Education and Care, Tokyo, Japan.ORCID http://orcid.org/0000-0002-1099-7989
Masafumi KitaokaCommittee for Optimization of Medical Equipment and Pharmaceuticals, Japan Association for Diabetes Education and Care, Tokyo, Japan.
Japan Medical Association · JPKyorin University · JPSaitama Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Anti-glutamic acid decarboxylase antibody (GADA) is an important islet cell-associated autoantibody for the diagnosis of autoimmune type 1 diabetes mellitus. In Japan, the GADA assay kit was recently changed from radioimmunoassay (RIA) to enzyme-linked immunosorbent assay (ELISA). Thereafter, a mismatched measurement between the two tests became apparent in clinical situations. The present study aimed to clarify the actual extent of mismatch between the two measurements on a larger-scale real-world clinical practice. In this cross-sectional non-local/non-hospital-based study, we collected anonymized data on GADA levels of 598 participants, who were simultaneously measured with GADA-RIA and GADA enzyme-linked immunosorbent assay tests. We found that 34% of the GADA-RIA-positive participants showed negative results in the GADA enzyme-linked immunosorbent assay test; the mismatch was predominantly observed in participants with relatively low GADA-RIA levels (<32 U/mL). This considerable mismatch might lead to physicians' confusion in diagnosing type 1 diabetes mellitus.

Indexed as

AutoantibodiesCross-Sectional StudiesDiabetes Mellitus, Type 1Diagnosis, DifferentialEnzyme-Linked Immunosorbent AssayFollow-Up StudiesGlutamate DecarboxylaseHumansPrognosisRadioimmunoassaySurveys and QuestionnairesAutoantibodiesGlutamate DecarboxylaseAnti-glutamic acid decarboxylase antibodyEnzyme-linked immunosorbent assayRadioimmunoassay

Identifiers

PMID30307126
PMCPMC6497777
OpenAlexW2898076286

What OpenQuestion holds

Textmetadata
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.