# OpenSAFELY ehrQL

ehrQL is a Python-based query language for electronic health record (EHR) data.

It has been designed for use with the OpenSAFELY platform.

Documentation is at the [OpenSAFELY documentation site](https://docs.opensafely.org/ehrql).

# For developers

See [DEVELOPERS.md](DEVELOPERS.md).

There is also [a glossary](GLOSSARY.md) of terms used in the codebase.

# About the OpenSAFELY framework

The OpenSAFELY framework is a Trusted Research Environment (TRE) for electronic

health records research in the NHS, with a focus on public accountability and

research quality.

Read more at [OpenSAFELY.org](https://opensafely.org).