ReviewCirculation. Cardiovascular quality and outcomes2021
External Validations of Cardiovascular Clinical Prediction Models: A Large-Scale Review of the Literature.
Review in Circulation. Cardiovascular quality and outcomes, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 5 of them syntheses that pooled 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.
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.
Who cites it
45 citing papers in PubMed, 5 syntheses or guidelines pooled it.
- A Systematic Review and Meta-analysis of Externally Validated Epic Clinical Decision Support Tools.Journal of general internal medicine · 2026Pooled it
- Number of Publications on New Clinical Prediction Models: A Bibliometric Review.JMIR medical informatics · 2025Pooled it
- TRIPOD+AI statement: updated guidance for reporting clinical prediction models that use regression or machine learning methods: a Korean translation.Ewha medical journal · 2025Guideline
- Pooled it
- Research inefficiencies in external validation studies of the Framingham Wilson coronary heart disease risk rule: A systematic review.PloS one · 2024Pooled it
- ACCEPT 3.0: Recalibrating ACute COPD Exacerbation Prediction Tool (ACCEPT) for global use.Diagnostic and prognostic research · 2026Article
- Comparing Non-Laboratory-Based and Laboratory-Based Cardiovascular Risk Predictions: Systematic Review and Meta-Analysis.Health science reports · 2026Review
- Predictive models of adverse outcomes of overweight or obesity: a nationwide cohort validation.BMC endocrine disorders · 2026Article
- Expanded Application of the DOAC Score for Predicting Bleeding Events in All Anticoagulated Patients With Atrial Fibrillation: An Integrated Analysis of 2 Prospective Japanese Registries-RAFFINE and SAKURA-AF.Circulation reports · 2026Article
- Missing infrastructure for real-world predictive AI impact.BMJ health & care informatics · 2026Article
- Retrospective analysis of the epidemiological characteristics, risk factors, survival rate, and drug resistance of candidemia and construction of a logistic regression prediction model (2013-2024).BMC infectious diseases · 2026Article
- Effect of Using Personalized Estimates of Diabetes Risk During Primary Care Visits for People With Prediabetes.Learning health systems · 2026Article
- Deep Learning and Cardiovascular Diseases: An Updated Narrative Review.Journal of clinical medicine · 2026Review
- The role of artificial intelligence in early detection and risk prediction of ischemic heart disease.Annals of medicine and surgery (2012) · 2026Review
- Review
- An interpretable XGBoost model for contrast-associated acute kidney injury in patients with acute coronary syndrome: development and geographical external validation.Frontiers in digital health · 2026Article
- From bedside to bench: towards clinical predictive AI research that achieves real-world impact.BMJ digital health & AI · 2026Review
- Development and validation of a clinical scoring system for the prediction of methotrexate treatment response in rheumatoid arthritis patients: a multicenter real-world study.Therapeutic advances in musculoskeletal disease · 2026Article
- Artificial Intelligence in Cardiac Electrophysiology: A Clinically Oriented Review with Engineering Primers.Bioengineering (Basel, Switzerland) · 2025Review
- A Clinical Prediction Model to Assist Screening Patients for Scabies in Primary Care.Journal of paediatrics and child health · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors.
Funding
Abstract
backgroundThere are many clinical prediction models (CPMs) available to inform treatment decisions for patients with cardiovascular disease. However, the extent to which they have been externally tested, and how well they generally perform has not been broadly evaluated.
methodsA SCOPUS citation search was run on March 22, 2017 to identify external validations of cardiovascular CPMs in the Tufts Predictive Analytics and Comparative Effectiveness CPM Registry. We assessed the extent of external validation, performance heterogeneity across databases, and explored factors associated with model performance, including a global assessment of the clinical relatedness between the derivation and validation data.
resultsWe identified 2030 external validations of 1382 CPMs. Eight hundred seven (58%) of the CPMs in the Registry have never been externally validated. On average, there were 1.5 validations per CPM (range, 0-94). The median external validation area under the receiver operating characteristic curve was 0.73 (25th-75th percentile [interquartile range (IQR)], 0.66-0.79), representing a median percent decrease in discrimination of -11.1% (IQR, -32.4% to +2.7%) compared with performance on derivation data. 81% (n=1333) of validations reporting area under the receiver operating characteristic curve showed discrimination below that reported in the derivation dataset. 53% (n=983) of the validations report some measure of CPM calibration. For CPMs evaluated more than once, there was typically a large range of performance. Of 1702 validations classified by relatedness, the percent change in discrimination was -3.7% (IQR, -13.2 to 3.1) for closely related validations (n=123), -9.0 (IQR, -27.6 to 3.9) for related validations (n=862), and -17.2% (IQR, -42.3 to 0) for distantly related validations (n=717;
conclusionsMany published cardiovascular CPMs have never been externally validated, and for those that have, apparent performance during development is often overly optimistic. A single external validation appears insufficient to broadly understand the performance heterogeneity across different settings.
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Registered trials
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.