Risk prediction models developed and validated on your data or on the large databases we work with, from regularised regression to gradient boosting and neural networks, reported to TRIPOD+AI and delivered as a working web calculator.
What it is
A clinical prediction model estimates an individual's risk of an outcome, death, readmission, complication, response, from things known at the point of decision. Machine learning extends the classical logistic or Cox model with algorithms that can capture non-linear patterns and interactions: penalised (LASSO, ridge, elastic-net) regression, random forests, gradient boosting (XGBoost, LightGBM), and neural networks.
What it is built for
Data, your registry or cohort, or NIS, TriNetX, SEER, UK Biobank, and similar sources.
Methods, regularised regression, random forest, gradient boosting, neural networks; tuning, internal/external validation, calibration, decision curve analysis, SHAP.
Deliverables. TRIPOD / TRIPOD+AI manuscript, reproducible code, and a working web calculator.
How it works
Outcome, horizon, predictors
Leakage-safe split
Regression to boosting
AUC and calibration
Decision curves, SHAP
TRIPOD+AI, web calculator
How you benefit
We agree the outcome, the setting, the predictors available at decision time, and whether your data or a large database is the right source.
We pre-specify the pipeline and check the data can support the number of predictors without overfitting.
We train and tune candidate algorithms in reproducible Python or R code, with a transparent baseline model for comparison.
Internal and external validation, calibration, decision curve analysis, and SHAP interpretation.
We draft the TRIPOD+AI paper with you and build the web calculator that accompanies it.
We shortlist the right journals, package the submission, and answer reviewers with you to a decision.
Published examples & standards
Independent, peer-reviewed examples of what this route can produce.
Weng SF, et al. · 2017
Four machine-learning algorithms compared head-to-head with the ACC/AHA risk score in 378,256 patients.
View in journal →Attia ZI, et al. · 2019
A neural network trained on 649,931 ECGs and validated on a held-out set, development and validation done properly.
View in journal →Ambale-Venkatesh B, et al. · 2017
Random survival forests on imaging, biomarker, and clinical data from a multi-ethnic cohort outperformed established risk scores.
View in journal →Rajkomar A, Dean J, Kohane I · 2019
The reference overview of what machine learning can and cannot do in clinical prediction, and the pitfalls reviewers look for.
View in journal →Collins GS, et al. · 2024
The checklist journals now expect for regression and machine-learning prediction models, every Cohira model is written to it.
View in journal →These are independent publications, shown to illustrate the field and its standards, they are not Cohira's work. We help you develop and publish models of comparable rigor.
Pricing
Per project, never per author. Journal fees and database access are billed at cost. Your week-by-week timeline is written into the free feasibility note before you pay. Booking more than one study? 10% off the second, 15% off from the third. Acceptance Guarantee & group pricing →
Start a conversation
Tell us the outcome and the data you hold or want to use. You will receive a free feasibility note, design, expected sample, and realistic target journals, before you commit to anything.