About fixed repeating sections

You might want to design a form that allows a user to enter the same piece of data multiple times for the same item. For example, a user might need to record a subject's heart rate while the subject is sitting and then standing, at specified time intervals after the subject receives a drug.

To do this, you can create a fixed repeating section in the Central Designer application. A fixed repeating section includes items for which predefined values are configured by using codelists at study design time, and cannot be modified at runtime. For the above example, the fixed repeating section contains the following study objects:

Study objects for the fixed repeating section

Study object	Type	Description
TimePoint item	Text, Integer, or Float	The amount of time before or after a drug is administered when data is collected. Contains predefined values.
Time points codelist	Text, Integer, or Float	Codelist items for each required time point. Codelist item 1—Pre-dose Codelist item 2—15 minutes post dose Codelist item 3—30 minutes post dose Codelist item 4—45 minutes post dose Codelist item 5—60 minutes post dose The codelist items are the predefined values for the TimePoint item.
Position item	Text, Integer, or Float	The subject's position when the data is collected. Contains predefined values.
Position codelist	Text, Integer, or Float	Codelist items for each required subject position: Codelist item 1—Sitting Codelist item 2—Standing The codelist items are the predefined values for the Position item.
HeartRate item	Any type, other than Date	The subject's heart rate at each time point, for each position. Does not contain predefined values.

In the Edit Fixed Table dialog box for this example, you might create the following rows:

Description of the rows in the Edit Fixed Table dialog box

Row	itmTime value	itmPosition value	itmHeartRate
1	Pre-dose	Sitting
2	Pre-dose	Standing
3	15 minutes post dose	Sitting
4	15 minutes post dose	Standing
5	30 minutes post dose	Sitting
6	30 minutes post dose	Standing	BLANK
7	45 minutes post dose	Sitting
8	45 minutes post dose	Standing
9	60 minutes post dose	BLANK
10	60 minutes post dose	Standing

The following illustration shows the fixed repeating section in the form layout.

Illustration of the form layout for the fixed repeating section


1—HeartRate item that does not contain predefined values.
2—Fixed TimePoint and Position items that contain predefined values.
3—TimePoint codelist item for the Pre-dose predefined value. Each TimePoint codelist item contains two rows; each row corresponds to a Position codelist item.
4—Position codelist with predefined Sitting and Standing values. These predefined values appear five times in the fixed repeating section layout; each instance corresponds to a TimePoint predefined value
5—Blank cell for an item in a non-fixed column.
6—Blank cell for an item in a fixed column.

As noted in the form layout screenshot, you can also specify a data point that you do not want data for, but that appears in the fixed repeating section. In addition, in some cases, it might not make sense for you to collect certain data points. To do this, when you create a fixed repeating section, you locate the cell that corresponds to the data point, and set is as blank. In the annotated form preview, a cell that corresponds to data that should not be collected is grayed out. In the target application, data cannot be entered for that data point.

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