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Comparing only Validated Data

To exclude “invalid hours” as determined by the Wear Time Validation tool, check the “use Validated Data if Available”

option in the Your Subject Data area. Doing so will exclude invalid whole hours that have been flagged in your datasets.

For more details, see

Wear Time Validation.

Filtering Data

Data comparisons are not limited to the entire scope of the datasets for NHANES and/or the user’s subject data. Use

the “NHANES Data Filter” section to isolate your comparison to subsets of data. Change the dropdown on the selected

parameter to “Custom” and enter in the custom range for the desired comparison. For Gender, choose either Male or

Female. For example, to compare your data strictly to 20 year olds in the NHANES program, change the “Age” filter to

20 to 29 as shown in Figure 58. Doing so will also eliminate any NHANES users who do not meet this qualification from

the other comparison groups. For instance, any NHANES users who are over 29 will be excluded from the weight

comparison.

Figure 58 – Custom Filtering for Data Comparison

Clicking the “Apply Filter to Your AGD Files” will apply the same filters to your own data. Leaving this option unchecked

will include the entire breadth of your own subject data when making comparisons. In the example shown in Figure 58,

all subject data (even outside of the age group limitation) will be compared across the 20-29 year old subjects within

NHANES. Checking the “Apply Filter to Your AGD Files” option would compare only 20-29 year olds in the subject data

to 20-29 year olds in the NHANES data.

Running the Comparison

To run the comparison, click the “Calculate” button after making all filter selections and subject metadata changes. A

subject comparison count will appear to the left of the “Calculate” button indicating how many subjects exist in the

NHANES study as compared to the user’s local study.

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ActiGraph ACTITRAINER Manuale Utente Pagina 83