# Cohort360

![](/files/HoyCp7ZiW1TXVWmW4Rx9)

## What is Cohort360?

Cohort360 is a user friendly web-app that simplifies Research on health data.

It has been created by [AP-HP](https://www.aphp.fr/) in 2018 and is being actively developped since.

Cohort360 lets you:

* Visualize patient data (we support [FHIR API](https://www.hl7.org/fhir/)s)
* Build patient cohorts using simple or complex criteria ("and", "or", "not", parenthesis, temporal constraints...)

Cohort360 is customizable, you can plug it to your existing APIs (FHIR compliant or not), you can [activate/disable features](/technical-documentation/front-ends/configuration.md) depending on your needs.

You can check out our YouTube presentations here:

{% embed url="<https://www.youtube.com/channel/UCaAGwfwxrYxp5kL-pxXqD4w>" %}

And you can also check out our documentation:

{% content-ref url="/pages/fceuPNlH8EO33x3n1zDW" %}
[Features tour](/take-a-tour/features-tour.md)
{% endcontent-ref %}

{% content-ref url="/pages/CDRhpEx40MTMGimzYzKw" %}
[The Query Builder](/take-a-tour/the-query-builder.md)
{% endcontent-ref %}

{% content-ref url="/pages/KIlFJ6fNULo219ityLHU" %}
[Patient records visualization](/take-a-tour/patient-records-visualization.md)
{% endcontent-ref %}

Cohort360 also comes with an admin portal (to be open sourced by the end of 2022) but works fine without it.

### Who uses Cohort360

This web application is currently running at the largest university hospital group in Europe : [AP-HP](https://www.aphp.fr/) with more than 12.9 million patient records (39 Hospitals).

### Deployment options

Cohort360 lets you choose between multiple options for deployment:

* If you already have APIs that expose data, then use Cohort360 and configure it to make it work with your own APIs
* If you don't have any API, then you can contact us to reproduce AP-HP's stack with an OMOP database, a FHIR API, a QueryServer, ...

{% hint style="success" %}
We suggest you to carefuly read the following two deployment methods to better understand what is the best way to deploy Cohort360 on your side:
{% endhint %}

{% content-ref url="/pages/MAIsVv86JFdq06rKV86E" %}
[Cohort360 alone](/deployment-options/cohort360-alone.md)
{% endcontent-ref %}

{% content-ref url="/pages/Kf3qMZjR3qwWRtSXMZzj" %}
[Cohort360 using AP-HP's stack](/deployment-options/cohort360-using-ap-hps-stack.md)
{% endcontent-ref %}

### Contributors

The main contributor is [AP-HP Health Data Warehouse](https://eds.aphp.fr/).

Other contributors include:

* [Arkhn](https://arkhn.org/)
* [Akimed](https://www.akimed.io/)

### Contributing

Cohort360 is an Open Source project: contributions are welcome! Please see our documentation:

{% content-ref url="/pages/JLudoir4T2HJsK3fEcFp" %}
[Contributing](/contributing/development-environment.md)
{% endcontent-ref %}

### Licence

Cohort360 is licenced under [Apache License 2.0](https://choosealicense.com/licenses/apache-2.0/).

### Contact

You can contact us at open-source \[at] cohort360.org

### Sponsors

Thanks to our sponsors:

* **Gitbook** for providing this documentation through their community plan


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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.cohort360.org/master.md?ask=<question>
```

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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
