Cited by 814Statistical Methods in EpidemiologyArtificial Intelligence in HealthcareMeta-analysis and systematic reviews

Evaluation of clinical prediction models (part 1): from development to external validation

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Collins, Gary S, Dhiman, Paula, Ma, Jie, Schlussel, Michael M, Archer, Lucinda, Van Calster, Ben, Harrell, Frank E, Martin, Glen P +5 more·2024·BMJ

Abstract

Evaluating the performance of a clinical prediction model is crucial to establish its predictive accuracy in the populations and settings intended for use. In this article, the first in a three part series, Collins and colleagues describe the importance of a meaningful evaluation using internal, internal-external, and external validation, as well as exploring heterogeneity, fairness, and generalisability in model performance.

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  • The dataset was split into training and testing subsets using a 70/30 ratio, with 70% for model development and 30% held out for independent performance assessment.

    “To ensure validation, the dataset was split into training and testing subsets using a 70/30 ratio, with 70% of the data reserved for model development and 30% held out for independent performance assessment”

    From A hybrid fuzzy logic–Random Forest model to predict psychiatric treatment order outcomes: an interpretable tool for legal decision support (2025) · cites this paper as Collins et al., 2024

    The “Random split” section uses a 70/30 development–test split to illustrate performance evaluation, but it does not document how the citing authors split their dataset. It also says that calling the resulting subsets “independent” is a misnomer and generally advises against split-sample validation, so it does not support the claim that this split ensured independent validation. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • The split sample approach might encourage researchers to repeat the procedure until they obtain satisfactory results.

    “Further, it might encourage researchers to repeat the procedure until they obtain satisfactory results.”

    From Developing clinical prediction models: a step-by-step guide (2024) · cites this paper as [88]

  • Implementation of k-fold cross validation and bootstrapping can be computationally demanding when multiple imputation of missing data is needed.

    “However, implementation of k-fold cross validation and bootstrapping can be computationally demanding when multiple imputation of missing data is needed.”

    From Developing clinical prediction models: a step-by-step guide (2024) · cites this paper as [88]

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Authors
Collins, G. S., Dhiman, P., Ma, J., Schlussel, M. M., Archer, L., Van Calster, B., Harrell, F. E., Martin, G. P., Moons, K. G. M., van Smeden, M., Sperrin, M., Bullock, G. S., & Riley, R. D.
Affiliations
  • Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford OX3 7LD, UK
  • University of Oxford (GB)
  • National Institute for Health and Care Research (GB)
  • KU Leuven, Department of Development and Regeneration, Leuven, Belgium
  • Vanderbilt University (US)
  • Manchester Academic Health Science Centre (GB)
  • Utrecht University (NL)
  • Julius Centre for Health Sciences and Primary Care, University Medical Centre Utrecht, Utrecht University, Utrecht, Netherlands
Venue
BMJ
Publisher
BMJ
Published
2024-01-08
Volume
384
Pages
e074819
ISSN
1756-1833 (ISSN-L)
OpenAlex
W4390674087
Cited by
798
References
65
Citations by year
2026: 464 · 2025: 253 · 2024: 81
FWCI
274.95
Type
journal article
Language
en
Open access
Locations
  • BMJ (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • University of Birmingham Research Portal (University of Birmingham) (publishedVersion, cc-by)
  • Research Explorer (The University of Manchester) (publishedVersion, cc-by)
  • Lirias (KU Leuven) (submittedVersion, cc-by)
  • Utrecht University Repository (Utrecht University) (submittedVersion, other-oa)
  • HighWire Press Open Archive (submittedVersion)
Funders
  • Cancer Research UK
  • KU Leuven
  • Engineering and Physical Sciences Research Council
Topics
  • Physical Sciences › Mathematics › Statistics and Probability › Statistical Methods in Epidemiology
  • Health Sciences › Health Professions › Health Information Management › Artificial Intelligence in Healthcare
  • Social Sciences › Decision Sciences › Statistics, Probability and Uncertainty › Meta-analysis and systematic reviews
Keywords
clinical prediction model, model evaluation, external validation, internal validation, prediction accuracy, model heterogeneity, fairness, generalizability
MeSH terms
Humans, Prognosis, Models, Statistical

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