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Data Validation

Data Validation

Data validation is an essential part of a comprehensive assessment. Validation is confirming or verifying and opening the door to gathering more assessment data as it clarifies vague or unclear data. The process of checking and verifying the collected information is called data validation. The primary purpose of data validation is to ensure data is as free from error, bias, and misinterpretation as possible.
Nursing assessment guides are generally based on holistic models rather than medical...

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Related Experiment Video

Updated: May 26, 2026

Augmenting Large Language Models via Vector Embeddings to Improve Domain-Specific Responsiveness

Augmenting Large Language Models via Vector Embeddings to Improve Domain-Specific Responsiveness

Published on: December 6, 2024

Validating large language model-assisted data extraction from clinical notes.

J W van Koevorden^1,2, N Aben³, V Struben³

¹Department of Head and Neck Surgery, Antoni van Leeuwenhoek-Netherlands Cancer Institute, Amsterdam, the Netherlands.

ESMO Real World Data and Digital Oncology

|May 25, 2026

Summary

This summary is machine-generated.

Large language models (LLMs) significantly reduce clinical documentation time in head and neck oncology, achieving high accuracy. Human oversight is crucial for AI-assisted documentation tools to support clinical workflows effectively.

Keywords:

administrative burden information extraction large language model (LLM)oncology real-world data validation

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A Metadata Extraction Approach for Clinical Case Reports to Enable Advanced Understanding of Biomedical Concepts

A Metadata Extraction Approach for Clinical Case Reports to Enable Advanced Understanding of Biomedical Concepts

Published on: September 20, 2018

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Last Updated: May 26, 2026

Augmenting Large Language Models via Vector Embeddings to Improve Domain-Specific Responsiveness

Augmenting Large Language Models via Vector Embeddings to Improve Domain-Specific Responsiveness

Published on: December 6, 2024

A Metadata Extraction Approach for Clinical Case Reports to Enable Advanced Understanding of Biomedical Concepts

A Metadata Extraction Approach for Clinical Case Reports to Enable Advanced Understanding of Biomedical Concepts

Published on: September 20, 2018

Area of Science:

Artificial Intelligence in Medicine
Clinical Informatics
Natural Language Processing

Background:

Healthcare professionals face significant documentation burdens impacting efficiency and patient safety.
Large language models (LLMs) offer a potential scalable solution for automating data extraction from unstructured clinical notes.
This study assesses LLM accuracy and clinical impact for structured data extraction in head and neck oncology.

Purpose of the Study:

To compare the accuracy and efficiency of LLM-driven data extraction against manual physician extraction.
To evaluate the clinical impact and error types associated with LLM data extraction.
To determine the potential of LLMs in streamlining clinical documentation for oncology consultations.

Main Methods:

A prospective validation study analyzed 1482 pages of clinical documentation from 60 patients.
A pretrained open-source LLM and two physicians extracted data across 29 categories.
Six clinical experts evaluated 2555 extracted values for accuracy, precision, recall, and F1 scores, categorizing errors.

Main Results:

LLM extraction accuracy ranged from 74% (pathology) to 90% (patient characteristics).
Manual extraction exhibited 29% interobserver disagreement, while LLM hallucinations were rare (0.16%) and low impact.
LLM extraction reduced average case time from 8.6 to 1.9 minutes (P < 0.001).

Conclusions:

LLMs can effectively reduce documentation time in clinical settings while maintaining acceptable accuracy.
Human oversight is essential when implementing AI-assisted documentation tools.
Findings support further research into AI tools for clinical practice to enhance documentation efficiency.