Simple group control

This example describes a blood pressure control:

This item is composed of a group control containing:

• A text control (systolic).
• A simple control with the label /.
• A text control (diastolic).
• A simple control with the label mmHg.

Criteria to determine whether an item is complete:

In this example, the item is considered complete if either systolic or diastolic is entered, because the group control is considered complete if at least one of its children is complete.

Note:

A typical study design will actually trigger a query if one of the parts of the blood pressure is left blank, but the item is technically complete.