# Data Release Summary Statistics in Atlas

The Atlas **Data Sources** option allows you to create **FinnGen data release-level descriptive summary statistics.**

### **Example: Drug exposure** statistics

* Choose the **Data Sources** option from the left menu
* Select the FinnGen data release from the first drop-down menu (we have selected the FinnGen data release 9 below)
* Select **Drug Exposure** from the second drop-down menu

<figure><img src="/files/edQ2UUbEFOOPnMdI74yW" alt=""><figcaption></figcaption></figure>

#### Treemap display

By default, the summary statistics are shown using a Treemap.

In our example:

* the boxes represent different drugs
* the box size shows the prevalence of the drug
* the box color shows the number of records per person (a darker color means more records)

Hovering the mouse above a box gives details about the drug it represents.

<figure><img src="/files/-MhYMcpHxV0_21qGqjrw" alt=""><figcaption></figcaption></figure>

#### Table display

* To see the information in a table format click the **Table** tab

<figure><img src="/files/9V6kG0aDB9Hxrbns3zSx" alt=""><figcaption></figcaption></figure>

The table will show the drug names, ingredients, person counts, prevalence, and records per person:

![](/files/fyCYaQwXjnyFDhLXN6MR)

* You can use the **Filter** field to search the drugs by name

![](/files/bpIVp6zGPNui4JNZnEKm)

### Atlas tutorials

* [Data sources: Drug Exposure](https://www.youtube.com/watch?v=u5zOHIt-tvQ)
* [Data Sources: Data Density](https://www.youtube.com/watch?v=8amxu-5hUoY)

### Atlas documentation

* [The Book of OHDSI, Chapter 11.6 Database Characterization in ATLAS](https://ohdsi.github.io/TheBookOfOhdsi/Characterization.html#database-characterization-in-atlas)


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

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

```
GET https://docs.finngen.fi/working-in-the-sandbox/which-tools-are-available/atlas/detailed-guide/atlas-data-sources.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

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.