Evidence map›Paper›PMID 30137378›Full record

ArticleJournal of the American Medical Informatics Association : JAMIA2018

Automated mapping of laboratory tests to LOINC codes using noisy labels in a national electronic health record system database.

Sharidan K Parr, Matthew S Shotwell, Alvin D Jeffery, Thomas A Lasko, Michael E Matheny

Abstract read
In one paragraph

Article in Journal of the American Medical Informatics Association : JAMIA, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

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

  1. Electronic health record data quality assessment and tools: a systematic review.Journal of the American Medical Informatics Association : JAMIA · 2023
    Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. AI Mapping of In-House Codes to LOINC Codes Using Laboratory Test Results Excluding Test Names: Toward International Sharing of Medical Data.AMIA Joint Summits on Translational Science proceedings. AMIA Joint Summits on Translational Science · 2025
    Article
  10. Review
  11. Article
  12. Mapping Clinical Documents to theAMIA ... Annual Symposium proceedings. AMIA Symposium · 2023
    Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Review
  18. Automated Mapping of Real-world Oncology Laboratory Data to LOINC.AMIA ... Annual Symposium proceedings. AMIA Symposium · 2021
    Article
  19. Normalizing Clinical Document Titles to LOINC Document Ontology: an Initial Study.AMIA ... Annual Symposium proceedings. AMIA Symposium · 2020
    Article
  20. Building a Graph Representation of LOINCAMIA ... Annual Symposium proceedings. AMIA Symposium · 2020
    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

5 authors.

Sharidan K ParrGeriatric Research Education and Clinical Center (GRECC), Tennessee Valley Health System Veterans Administration Medical Center, Nashville, Tennessee, USA.
Matthew S ShotwellDepartment of Biostatistics, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
Alvin D JefferyGeriatric Research Education and Clinical Center (GRECC), Tennessee Valley Health System Veterans Administration Medical Center, Nashville, Tennessee, USA.
Thomas A LaskoDepartment of Biomedical Informatics, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
Michael E MathenyGeriatric Research Education and Clinical Center (GRECC), Tennessee Valley Health System Veterans Administration Medical Center, Nashville, Tennessee, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: Standards such as the Logical Observation Identifiers Names and Codes (LOINC®) are critical for interoperability and integrating data into common data models, but are inconsistently used. Without consistent mapping to standards, clinical data cannot be harmonized, shared, or interpreted in a meaningful context. We sought to develop an automated machine learning pipeline that leverages noisy labels to map laboratory data to LOINC codes. Materials and Methods: Across 130 sites in the Department of Veterans Affairs Corporate Data Warehouse, we selected the 150 most commonly used laboratory tests with numeric results per site from 2000 through 2016. Using source data text and numeric fields, we developed a machine learning model and manually validated random samples from both labeled and unlabeled datasets. Results: The raw laboratory data consisted of >6.5 billion test results, with 2215 distinct LOINC codes. The model predicted the correct LOINC code in 85% of the unlabeled data and 96% of the labeled data by test frequency. In the subset of labeled data where the original and model-predicted LOINC codes disagreed, the model-predicted LOINC code was correct in 83% of the data by test frequency. Conclusion: Using a completely automated process, we are able to assign LOINC codes to unlabeled data with high accuracy. When the model-predicted LOINC code differed from the original LOINC code, the model prediction was correct in the vast majority of cases. This scalable, automated algorithm may improve data quality and interoperability, while substantially reducing the manual effort currently needed to accurately map laboratory data.

Indexed as

AlgorithmsClinical Laboratory Information SystemsLogical Observation Identifiers Names and CodesMachine LearningMedical Records Systems, ComputerizedDatasets as TopicData WarehousingHealth Information InteroperabilityUnited States

Identifiers

PMID30137378
PMCPMC7646911

What OpenQuestion holds

Textmetadata
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.