Evidence map›Paper›PMID 24111785›Full record

ArticleTransfusion2013

External quality assessment in molecular immunohematology: the INSTAND proficiency test program.

Willy A Flegel, Ion Chiosea, Ulrich J Sachs, Gregor Bein

Open access · greenAbstract read
In one paragraph

Article in Transfusion, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 25% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

  1. Guideline
  2. Evaluation of the LightCyclerBiomedicines · 2024
    Article
  3. DNA Reference Reagents for Genotyping RH Variants.The Journal of molecular diagnostics : JMD · 2024
    Article
  4. Article
  5. Article
  6. Red cell genotyping precision medicine: a conference summary.Therapeutic advances in hematology · 2017
    Review
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

4 authors at 2 institutions in 2 countries.

Willy A FlegelDepartment of Transfusion Medicine, NIH Clinical Center, National Institutes of Health, Bethesda, Maryland.
Ion Chiosea
Ulrich J Sachs
Gregor Bein
National Institutes of Health Clinical Center · USUniversity of Giessen · DE

Funding

Intramural NIH HHS Z99 CL999999
6 · The paper itself

Abstract

backgroundGenotyping for red blood cell (RBC), platelet (PLT), and granulocyte antigens is a new tool for clinical pathology, transfusion medicine services, and blood banks. Proficiency in laboratory tests can be established by external quality assessments (EQAs), which are required for clinical application in many health care systems. There are few EQAs for molecular immunohematology. STUDY DESIGN AND

methodsWe analyzed the participation and pass rates in an EQA for RBC, PLT, and granulocyte antigens. This EQA was distributed by INSTAND, a large nonprofit provider of proficiency tests, twice per year since Fall 2006 as EQA Number 235 Immunohematology A (molecular diagnostic). The coordinators defined at the outset which alleles are mandatory for detection.

resultsThe number of participants steadily increased from 51 to 73 per proficiency by Fall 2012. More than 60 institutions utilized this EQA at least once a year. Approximately 80% of them participated in RBC, 68% in PLT, and 22% in granulocyte systems. With the exceptions of RHD (82%) and granulocytes (85%), pass rates exceeded 93%. While the pass rate increased for granulocyte and decreased for the ABO system, the pass rates for the other systems changed little over 6½ years.

conclusionsThe INSTAND proficiency test program was regularly used for EQA by many institutions, particularly in Central Europe. While the technical standards and pass rates in the participating laboratories were high, there has been little improvement in pass rates since 2006.

Indexed as

Blood Grouping and CrossmatchingLaboratory Proficiency TestingABO Blood-Group SystemBlood BanksBlood PlateletsErythrocytesEuropeGranulocytesHumansABO Blood-Group System

Identifiers

PMID24111785
PMCPMC3830650
OpenAlexW1591790084

What OpenQuestion holds

Textmetadata
LicenceTDM
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.