What Are Codelists and How Are They Constructed?

In this blog we explain what codelists are, how they are constructed and review existing literature on construction processes.

Read more about What Are Codelists and How Are They Constructed?

Why ehrQL?

Why did we create a new query language?

Read more about Why ehrQL?

OpenSAFELY Wins CogX Award for Open Science Innovation

The OpenSAFELY Collaborative has won a prestigious CogX Award for the Best Innovation in Open Source Technology

Read more about OpenSAFELY Wins CogX Award for Open Science Innovation

NHS England Medicines Optimisation Opportunities - A new dashboard on OpenPrescribing

In this blog we describe how to use and access the NHS England Medicines Optimisation Oppurtunitites dashboard on OpenPrescribing

Read more about NHS England Medicines Optimisation Opportunities - A new dashboard on OpenPrescribing

OpenSAFELY Service Restoration Observatory: Key Measures

In this blog, we describe the development of a set of key measures used to monitor the ongoing impact of the COVID-19 pandemic on primary care as part of the OpenSAFELY Service Restoration Observatory (SRO). The results from this work have now been published in eLife.

Read more about OpenSAFELY Service Restoration Observatory: Key Measures

Introduction to the Information Governance Team

Here we introduce the Bennett Institute’s Information Governance team, explaining who they are, and what they do.

Read more about Introduction to the Information Governance Team

Challenges in Estimating COVID-19 Vaccine Effectiveness Using Observational Data

Our new paper describes some of the biases that exist when estimating COVID-19 vaccine effectiveness using routinely-collected health data, and discusses the use of target trial emulation to avoid or mitigate these biases.

Read more about Challenges in Estimating COVID-19 Vaccine Effectiveness Using Observational Data

An Introduction to Clinical Codes and Terminology Systems

An introduction to what clinical codes are, why they are used and the terminology systems used within OpenSAFELY work.

Read more about An Introduction to Clinical Codes and Terminology Systems

Running the OpenSAFELY Output Checking Service

A summary of our findings from running the OpenSAFELY output checking service.

Read more about Running the OpenSAFELY Output Checking Service