Secure analytics platform for NHS electronic health records
OpenSAFELY delivers research across over 58 million people's health records, always respecting patient confidentiality
Better research, improved patient confidentiality
Why OpenSAFELY?OpenSAFELY is a highly secure, transparent, open-source software platform for analysis of electronic health records data. All platform activity is publicly logged. All software for data management and analysis is shared, automatically and openly, for scientific review and efficient re-use.
Protecting privacy
We never let researchers download patient data, and OpenSAFELY tools let users to write code to analyse patient data without even needing to view the raw records.
Auditable by the public
It is a privilege to use patient data for the public good. OpenSAFELY respects patients by carefully considering this in every part of its design.
Better, open science
OpenSAFELY requires publication of all analytic code, and our tools drive all users to produce prespecified, reusable, testable, shareable and modular software for research.
Enabling high volumes of research
Over 60 published research outputs to date, with many more in progress.
OpenSAFELY is revolutionising the way we work with health data. The initiative has already delivered major contributions to public health during the COVID-19 pandemic. But OpenSAFELY also leads the way in terms of transparency, open working methods, and a uniquely secure data access model.
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Open for research
We are currently working with NHS England to cautiously on-board a small number of external pilot users to develop their analyses on OpenSAFELY. This first wave of pilot users will be collaborators, working closely alongside us to co-develop the platform.
Read about our pilot onboarding processPython, R and Stata
Choose any of these languages to write your analytic code
Primary care data
Our deployment for NHS England uses primary care data to research questions related to the Covid-19 emergency
A commitment to open ways of working
We believe transparency and open working methods are key to earning public trust and improving research quality
Latest from the blog
Ben Goldacre appears on BBC's More or Less
Ben discusses the OpenSAFELY platform with fellow nerd Tim Harford
OpenPrescribing Winter 2023/2024 Newsletter
This newsletter contains all the latest updates from OpenPrescribing
PINCER: Monitoring medication safety throughout the COVID-19 pandemic using OpenSAFELY
Here we describe some of our recent work investigating the impact of the COVID-19 pandemic on safe prescribing using a set of quality assured indicators across 57 million patients’ records in England
Trends in inequalities in avoidable hospitalisations across the COVID-19 pandemic
In this guest blog, Mark Green describes their latest paper using OpenSAFELY.
How we test ehrQL
How can you be confident that the queries you write will be correctly interpreted and return the expected results?
Bennett Conference session 4: OpenSAFELY research highlights, external perspectives & Peter Bennett
The final session was a series of talks highlighting some of the research conducted in OpenSAFELY, some external perspectives on OpenSAFELY, and concluding remarks from our benefactor Peter Bennett, and director Ben Goldacre.