# Items: Item Counts by Property

Items: Item Counts by Property report elements let you report item totals based on their design characteristics.

Note: All item counts include only items that have at one time contained clinical data. These counts do not include items for which clinical data has never been entered.

Items: Item Counts by Property report elements

Report element | Description
--- | ---
Required | Data type: Y/N Description: Indicates whether the item is required. Y—A value must be entered for the item. N—Data entry is not required for the item. Data source: Derived and stored in the Reporting and Analysis database.
SV Required | Data type: Numeric Description: The total number of items that require source verification and have ever contained clinical data. How calculated: Counts items that: Are SV Required. Contain (or have ever contained) clinical data. Exist on a form that is selected for source verification. Data source: Derived and stored in the Reporting and Analysis database.
Calculated | Data type: Numeric Description: The total number of calculated items, as specified in the study design code. How calculated: Counts items that: Have the item property set as a calculated control. Have ever contained clinical data. Data source: Derived and stored in the Reporting and Analysis database.

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