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NDA Help Center

Filter Cart

The Filter Cart provides a way to query and access data for which you may be interested.  There are multiple places to go query and Add to Filter Cart (Sometimes called Download).  

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 add subjects, sometimes it may take a few minutes to populate.  You can continue to do other things 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 available for the subjects selected 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 available.  However, if you want to see all of the clinical and phenotype, then select, "Find All Subject Data" to see all the data avaialble for those subjects.  

when a secord or third filter is applied, an AND condition is used to determine the subjects that are exist in all filters.  If the subject does not appear in any filter, that subjects data will be excluded from your filter cart. Given the sparcity of data in the NDA, it is possible for no subjects to appear across filters.  If that happens, clear your filter cart, and start over.  

The NDA is looking to enhance query/filtering.  Until additional tools become available, it is best to package more data than you need and then package and download the data and use other tools to further restrict and analyze the data.  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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NDAR provides a single access to de-identified autism research data. For permission to download data, you will need an NDAR account with approved access to NDAR or a connected repository (AGRE, IAN, or the ATP). For NDAR 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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The filters you have selected from various query interfaces will be stored here, in the 'Filter Cart'. The database will be queried using filters added to your 'Filter Cart', when multiple filters are defined, each will be executed using 'AND' logic, so with each filter that is applied the result set gets smaller.

From the 'Filter Cart' you can inspect each of the filters that have been defined, and you also have the option to remove filters. The 'Filter Cart' itself will display the number of filters applied along with the number of subjects that are identified by the combination of those filters. For example a GUID filter with two subjects, followed by a GUID filter for just one of those subjects would return only data for the subject that is in both GUID filters.

If you have a question about the filter cart, or underlying filters please contact the help desk at The NDA Help Desk

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Data Structures with shared data
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Acute Stress Disorder Interview



Download Definition as
Download Submission Template as
Element NameData TypeSizeRequiredDescriptionValue RangeNotes
subjectkeyGUIDRequiredThe NDAR Global Unique Identifier (GUID) for research subjectNDAR*
src_subject_idString20RequiredSubject ID how it's defined in lab/project
interview_dateDateRequiredDate on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYYRequired field
interview_ageIntegerRequiredAge in months at the time of the interview/test/sampling/imaging.0 :: 1260Age is rounded to chronological month. If the research participant is 15-days-old at time of interview, the appropriate value would be 0 months. If the participant is 16-days-old, the value would be 1 month.
genderString20RequiredSex of the subjectM;FM = Male; F = Female
asd_a_1IntegerRecommendedWhen <trauma> happened did you think that you or someone else was going to be seriously injured or die?0;10=No; 1=Yes
asd_a_2aIntegerRecommendedWhen <trauma> happened, did you feel very frightened?0;10=No; 1=Yes
asd_a_2bIntegerRecommendedWhen <trauma> happened, did you feel that there was nothing you could do about it?0;10=No; 1=Yes
asd_criterionaIntegerRecommendedCriterion A met:0;10=No; 1=Yes
asd_b_1IntegerRecommendedDuring or since the <trauma>, have you felt numb or distant from your own emotions?0;10=No; 1=Yes
asd_b_2IntegerRecommendedDuring or since the <trauma>, have you felt less aware f your surroundings?0;10=No; 1=Yes
asd_b_3IntegerRecommendedDuring or since the <trauma>, have things around you seemed unreal?0;10=No; 1=Yes
asd_b_4IntegerRecommendedDuring or since the <trauma>, have you felt distant from your normal self or have you felt as though you were looking at yourself from the outside?0;10=No; 1=Yes
asd_b_5IntegerRecommendedHave you been unable to recall some important aspects of the <trauma>?0;10=No; 1=Yes
asd_criterionbIntegerRecommendedCriterion B met:0;10=No; 1=Yes
asd_c_1IntegerRecommendedHave you kept remembering the <trauma> even when you have not wanted to?0;10=No; 1=Yes
asd_c_2IntegerRecommendedHave you kept having bad dreams or nightmares about the <trauma>?0;10=No; 1=Yes
asd_c_3IntegerRecommendedHave you suddenly acted or felt as though the <trauma> were about to happen again, even though it wasn't?0;10=No; 1=Yes
asd_c_4IntegerRecommendedDo you feel very upset when you are reminded of the <trauma>?0;10=No; 1=Yes
asd_criterioncIntegerRecommendedCriterion C met?0;10=No; 1=Yes
asd_d_1IntegerRecommendedHave you deliberately tried not to think about the <trauma>?0;10=No; 1=Yes
asd_d_2IntegerRecommendedHave you deliberately tried not to talk abou the <trauma>?0;10=No; 1=Yes
asd_d_3IntegerRecommendedHave you avoided places or people or activities that may remind you of the <trauma>?0;10=No; 1=Yes
asd_d_4IntegerRecommendedHave you tried not to feel upset or distressed about the <trauma>?0;10=No; 1=Yes
asd_criteriondIntegerRecommendedCriterion D met:0;10=No; 1=Yes
asd_e_1IntegerRecommendedSince the <trauma>, have you had trouble sleeping?0;10=No; 1=Yes
asd_e_2IntegerRecommendedSince the <trauma>, have you felt unusually irritable or have you lost your temper a lot more than usual?0;10=No; 1=Yes
asd_e_3IntegerRecommendedSince the <trauma>, have you had difficulty concentrating?0;10=No; 1=Yes
asd_e_4IntegerRecommendedSince the <trauma>, have you become much more concerned about danger or very much more careful?0;10=No; 1=Yes
asd_e_5IntegerRecommendedSince the <trauma>, have you become jumpy or do you get easily startled by ordinary noises or movements?0;10=No; 1=Yes
asd_e_6IntegerRecommendedWhen you are reminded of the <trauma>, do you sweat or tremble or does your heart beat fast?0;10=No; 1=Yes
asd_criterioneIntegerRecommendedCriterion E met:0;10=No; 1=Yes
asd_f_1IntegerRecommendedHave you felt very upset by the symptoms you have experienced since the <trauma>?0;10=No; 1=Yes
asd_f_2IntegerRecommendedHave the problems which occurred as a result of the <trauma> kept you from normal socializing or talking with people?0;10=No; 1=Yes
asd_f_3IntegerRecommendedHave the problems which occurred as a result of the <trauma> kept you from completing your normal work?0;10=No; 1=Yes
asd_f_4IntegerRecommendedHave the problems which occurred as a result of the <trauma> kept you from doing other things you need to do?0;10=No; 1=Yes
asd_criterionfIntegerRecommendedCriterion F met:0;10=No; 1=Yes
asd_g_1IntegerRecommendedHave you taken medications or used drugs or alcohol at the time or since the <trauma>?0;10=No; 1=Yes
asd_g_1aString50RecommendedHave you taken medications or used drugs or alcohol at the time or since the <trauma>. If yes, specify which:
asd_g_1bString50RecommendedHave you taken medications or used drugs or alcohol at the time or since the <trauma>. If yes, specify when was the last time:
asd_g_2IntegerRecommendedHave you suffered any medication conditions, including head injuries or losing consciousness, at the time or since the <trauma>?0;10=No; 1=Yes
asd_g_2aString50RecommendedHave you suffered any medication conditions, including head injuries or losing consciousness, at the time or since the <trauma>. If yes, specify which:
asd_g_2bString50RecommendedHave you suffered any medication conditions, including head injuries or losing consciousness, at the time or since the <trauma>. If yes, specify when was the last time:
asd_criteriongIntegerRecommendedCriterion G met:0;10=No; 1=Yes
asd_h_cIntegerRecommendedHave the symptoms reported in criterion C lasted longer than 2 days and less than 4 weeks after the trauma? This information is based on responses obtained in relevant sections of the interview.0;10=No; 1=Yes
asd_h_dIntegerRecommendedHave the symptoms reported in criterion D lasted longer than 2 days and less than 4 weeks after the trauma? This information is based on responses obtained in relevant sections of the interview.0;10=No; 1=Yes
asd_h_eIntegerRecommendedHave the symptoms reported in criterion E lasted longer than 2 days and less than 4 weeks after the trauma? This information is based on responses obtained in relevant sections of the interview.0;10=No; 1=Yes
asd_criterionhIntegerRecommendedIs criterion H met: (If criterion C, D, E are coded as 1, then criterion H is met)0;10=No; 1=Yes
asd_crithIntegerRecommendedCriterion H met?0;10=No; 1=Yes
asd_crittotalIntegerRecommendedASD criterion met?0;10=No; 1=Yes
asd_b_totalIntegerRecommendedCriterion B Total Score1::5Sum of items coded as 1 for criterion B
asd_c_totalIntegerRecommendedCriterion C Total Score1::4Sum of items coded as 1 for criterion C
asd_d_totalIntegerRecommendedCriterion D Total Score1::4Sum of items coded as 1 for crterion D
asd_e_totalIntegerRecommendedCriterion E Total Score1::6Sum of items coded as 1 for criterion E
asd_totalIntegerRecommendedCriterion Total Score1::20Sum of item coded as 1 for B, C, D, E
Data Structure

This page displays the data structure defined for the measure identified in the title and structure short name. The table below displays a list of data elements in this structure (also called variables) and the following information:

  • Element Name: This is the standard element name
  • Data Type: Which type of data this element is, e.g. String, Float, File location.
  • Size: If applicable, the character limit of this element
  • Required: This column displays whether the element is Required for valid submissions, Recommended for valid submissions, Conditional on other elements, or Optional
  • Description: A basic description
  • Value Range: Which values can appear validly in this element (case sensitive for strings)
  • Notes: Expanded description or notes on coding of values
  • Aliases: A list of currently supported Aliases (alternate element names)
  • For valid elements with shared data, on the far left is a Filter button you can use to view a summary of shared data for that element and apply a query filter to your Cart based on selected value ranges

At the top of this page you can also:

  • Use the search bar to filter the elements displayed. This will not filter on the Size of Required columns
  • Download a copy of this definition in CSV format
  • Download a blank CSV submission template prepopulated with the correct structure header rows ready to fill with subject records and upload

Please email the The NDA Help Desk with any questions.

Distribution for DataStructure: asdi01 and Element:
Chart Help

Filters enable researchers to view the data shared in NDA before applying for access or for selecting specific data for download or NDA Study assignment. For those with access to NDA shared data, you may select specific values to be included by selecting an individual bar chart item or by selecting a range of values (e.g. interview_age) using the "Add Range" button. Note that not all elements have appropriately distinct values like comments and subjectkey and are not available for filtering. Additionally, item level detail is not always provided by the research community as indicated by the number of null values given.

Filters for multiple data elements within a structure are supported. Selections across multiple data structures will be supported in a future version of NDA.