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Frequently Asked Questions


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Filter Cart

The Filter Cart provides a powerful way to query and access data for which you may be interested.  

A few points related to the filter cart are important to understand with the NDA Query/Filter implementation: 

First, the filter cart is populated asyncronously.  So, when you run a query, it may take a moment to populate but this will happen in the background so you can define other queries during this time.  

When you are adding your first filter, all data associated with your query will be added to the filter cart (whether it be a collection, a concept, a study, a data structure/elment or subjects). Not all data structures or collections will necessarily be displayed.  For example, if you select the NDA imaging structure image03, and further restrict that query to scan_type fMRI, only fMRI images will appear and only the image03 structure will be shown.  To see other data structures, select "Find All Subject Data" which will query all data for those subjects. When a secord or third filter is applied, an AND condition is used.  A subject must exist in all filters.  If the subject does not appear in any one filter, that subjects data will not be included in your filter cart. If that happens, clear your filter cart, and start over.  

It is best to package more data than you need and access those data using other tools, independent of the NDA (e.g. miNDAR snapshot), to limit the data selected.  If you have any questions on data access, are interested in using avaialble web services, or need help accessing data, please contact us for assistance.  

Frequently Asked Questions



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NDA provides a single access to de-identified autism research data. For permission to download data, you will need an NDA account with approved access to NDA or a connected repository (AGRE, IAN, or the ATP). For NDA access, you need to be a research investigator sponsored by an NIH recognized institution with federal wide assurance. See Request Access for more information.

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Data Structures with shared data
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Change History For

Medication Side Effects

65 Shared Subjects

Clinical Assessments
Side Effects
View Data Structure
Element Name Change Description Before Now When
visit ELEMENT_SIZE, ELEMENT_SIZE: 50 ELEMENT_SIZE: 60 06/25/2020 10:25 AM
sex VALUE_RANGE, , NOTES, VALUE_RANGE: M;F NOTES: M = Male; F = Female VALUE_RANGE: M;F; O; NR NOTES: M = Male; F = Female; O=Other; NR = Not reported 02/21/2020 13:02 PM
gender PERMANENTLY ALIASED gender sex 04/22/2019 00:00 AM
site ELEMENT_SIZE, ELEMENT_SIZE: 100 ELEMENT_SIZE: 101 01/30/2019 17:56 PM
gender DESCRIPTION DESCRIPTION: Sex of the subject DESCRIPTION: Sex of the subject 08/22/2018 10:43 AM
gender DESCRIPTION DESCRIPTION: Block Brief 2000: Sex of the subject DESCRIPTION: Sex of the subject 08/20/2018 10:21 AM
gender DESCRIPTION DESCRIPTION: Sex of the subject DESCRIPTION: Block Brief 2000: Sex of the subject 08/14/2018 16:18 PM
visit NOTES, NOTES: Character description of each type of visit NOTES: 07/18/2018 13:11 PM
interview_date DESCRIPTION DESCRIPTION: Date on which the interview/genetic test/sampling/imaging was completed. MM/DD/YYYY DESCRIPTION: Date on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYY 08/28/2017 15:10 PM
mse1 VALUE_RANGE, NOTES VALUE_RANGE: 0;1 NOTES: 0 = No;1 = Yes VALUE_RANGE: 0;1;-7;-9 NOTES: 0 =no; 1 = yes; -9 = don't know; -7 = refused 11/30/2016 14:28 PM
gender VALUE_RANGE, NOTES VALUE_RANGE: M;F; T NOTES: M = Male; F = Female; T= Transgender VALUE_RANGE: M;F NOTES: M = Male; F = Female 05/25/2016 11:51 AM
gender DESCRIPTION DESCRIPTION: Gender DESCRIPTION: Sex of the subject 05/25/2016 11:50 AM
interview_date REQUIRED REQUIRED: Recommended REQUIRED: Required 07/22/2015 12:41 PM
interview_date REQUIRED REQUIRED: Required REQUIRED: Recommended 07/22/2015 12:29 PM
Data Structure Change History

This page displays a list of all the changes that have been made to this data structure since its original definition. You can view the element name, the attribute that was changed, previous and subsequent values, and the timestamp of the change. Use the search bar to filter the displayed changes.

Please email the The NDA Help Desk with any questions.