The Cohort Summary screen | Knowledge Base

Once you’ve saved or chosen to finish editing a cohort, it will be saved and listed within your My Cohorts area.

Additionally, a Cohort summary is created which summarises the key features of your cohort and also gives you access to a wider range of functions than those made available during cohort creation or editing.

The Cohort summary is accessed either by clicking the name of any cohort listed in your My Cohorts area or by clicking Finish editing when creating or editing a cohort.

Click My cohorts on the top menu bar:

my cohorts option highlighted

You’ll see a list of all the cohorts you’ve created, or that other users have shared with you:

list of cohorts

Click the name of a cohort to view its details on the Cohort Summary screen:

Cohort summary dashboard with numbered sections

Several functions are available here:

Sample

The Sample function enables you to select a random or regular sample of members of the cohort and save that sample as a subgroup.

Freeze

The Freeze function enables you to freeze the membership of the cohort at the date of freezing. So, for example, if you have defined a cohort as ‘All patients admitted in the past month’, then using that cohort in a month’s time would ordinarily produce a different set of patients from use of it on the day of creation. However, if you freeze that cohort it will always use the same patients as at the date of freezing. Note: You cannot edit any of the selection criteria for a cohort once it’s frozen. You can unfreeze a cohort at any time.

Clone

The Clone function makes it possible to create an exact copy of an existing cohort and then edit the selection criteria. This is especially useful if you wish to create a variation of a complex cohort. The easiest way to do this is to clone the complex cohort and then alter the filters, rather than recreating the whole cohort again. See Cloning cohorts for more information.

If you have the relevant permissions as part of your role, you can choose to Share cohorts with other users. See Sharing cohorts for more information.

Delete

Click here to delete the cohort.

Quick ID

The QuickId function enables you to download a .csv file of names and IDs of all patients belonging to the cohort:

Compare or Merge

This function enables you to compare 2 cohorts and create subgroups of the data. See Comparing and merging cohorts for more information.

Cohort insights

Explore Cohort Insights relating to this cohort:

Cohort Tracking

Access Cohort Tracking information for this cohort:

Definition Criteria

View the Definition criteria chosen to define your cohort. This gives details of all your selected filters and the impact of their selection on the number of patients in the cohort:

Timeline

The Timeline feature makes it easier for you to keep track of your actions within Atmolytics. You can view and annotate any action that Atmolytics has recorded as part of your work process. Understanding the provenance of any generated information is vital when undertaking research or making clinical decisions, and it’s easy to lose track of the many actions you might undertake when working in Atmolytics.

For example, you could:

Create a new cohort
Alter the cohort after reviewing it with a colleague
Receive another cohort from a colleague
Compare the two cohorts using one of Atmolytics’ many apps
Create a sub group from the results of the app

The Timeline feature automatically records and displays the following actions:

Cohort creation, modification and editing
Report creation and generation
Full report history with links through to each cohort used within the report
Transparent usage of a cohort in a report with links through to the report output
Tracks when new patients are added to the system
User role management (i.e. what data a user has access to)

1 - Each point of change is shown here. Click any of the images to see a list of the related actions below

2 - This is an expandable list of the actions associated with the point in time you’ve selected. Click the small down-arrow on the right of each action to see more details.

Reports and Use in app

All the reports based on the cohort are listed here. You can use your cohort to run a new instance of an existing report, or create a new report:

Edit cohort

Go to Cohort Discovery to view and edit your cohort definition. You can change, remove, or apply new filters and save your changes when you’ve finished.