pmsims

PMSIMS is a free, easy-to-use tool to help researchers calculate how much data they need to build accurate and reliable prediction models using machine learning and long-term health records. Developed in partnership with patients, carers, and charities, the tool will support safer, fairer, and more effective use of data in healthcare.

Prediction models are already helping the NHS personalise care, plan treatments, and prevent illness before it starts. But many are built on too little data, leading to inaccurate results—especially for underrepresented groups. Our project addresses this problem by providing practical guidance on the data needed to develop models that are both powerful and fair.

This project is led by a team at King's College London and funded by the National Institute for Health and Care Research as part of the Research for Patient Benefit Programme.