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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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Selected Filters
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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

Value Range
Data Structures with shared data
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National Women's Study PTSD Module



Download Definition as
Download Submission Template as
Element NameData TypeSizeRequiredDescriptionValue RangeNotesAliases
subjectkeyGUIDRequiredThe NDAR Global Unique Identifier (GUID) for research subjectNDAR*GUID_R03
src_subject_idString20RequiredSubject ID how it's defined in lab/projectSID_R03
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
nwspm01IntegerRecommendedYou had trouble concentrating or keeping your mind on what you were doing, even when you tried to concentrate0;10=No; 1=YesNWSPM01_R03
nwspm02IntegerRecommendedYou lost interest in activities which usually meant a lot to you0;10=No; 1=YesNWSPM02_R03
nwspm03IntegerRecommendedYou felt you had to stay on guard much of the time0;10=No; 1=YesNWSPM03_R03
nwspm04IntegerRecommendedYou deliberately tried very hard not to think about something that had happened to you0;10=No; 1=YesNWSPM04_R03
nwspm05IntegerRecommendedYou had difficulty falling asleep or staying asleep0;10=No; 1=YesNWSPM05_R03
nwspm06IntegerRecommendedYou stopped caring about activities in your life that used to be important to you0;10=No; 1=YesNWSPM06_R03
nwspm07IntegerRecommendedUnexpected noises startled you more than usual0;10=No; 1=YesNWSPM07_R03
nwspm08IntegerRecommendedYou kept having unpleasant memories or seeing them in your mind0;10=No; 1=YesNWSPM08_R03
nwspm09IntegerRecommendedYou had repeated bad dreams or nightmares0;10=No; 1=YesNWSPM09_R03
nwspm10IntegerRecommendedYou went out of your way to avoid certain places or activities which might remind you of something that happened to you in the past0;10=No; 1=YesNWSPM10_R03
nwspm11IntegerRecommendedYou deliberately tried to avoid having feelings about something that happened to you in the past0;10=No; 1=YesNWSPM11_R03
nwspm12IntegerRecommendedYou felt cut off from other people or found it difficult to feel close to other people0;10=No; 1=YesNWSPM12_R03
nwspm13IntegerRecommendedIt seemed you could not feel things anymore or that you had much less emotion than you used to0;10=No; 1=YesNWSPM13_R03
nwspm14IntegerRecommendedYou found yourself suddenly feeling very anxious, fearful, or panicky0;10=No; 1=YesNWSPM14_R03
nwspm15IntegerRecommendedLittle things bothered you a lot or could make you very angry0;10=No; 1=YesNWSPM15_R03
nwspm16IntegerRecommendedDisturbing memories kept coming into your mind whether you wanted to think of them or not0;10=No; 1=YesNWSPM16_R03
nwspm17IntegerRecommendedYou felt a lot worse when you were in a situation that reminded you of something that had happened to you in the past0;10=No; 1=YesNWSPM17_R03
nwspm18IntegerRecommendedYou found yourself reacting physically to things that remind you of something that had happened to you in the past0;10=No; 1=YesNWSPM18_R03
nwspm19IntegerRecommendedThe way you think about or plan for the future was changed by something that happened to you in the past0;10=No; 1=YesNWSPM19_R03
nwspm20IntegerRecommendedHave you ever had a "flashback0;10=No; 1=YesNWSPM20_R03
nwspm21aIntegerRecommendedHave you ever felt that there were parts of any such experiences that you couldn't remember0;10=No; 1=YesNWSPM21a_R03
nwspm21bIntegerRecommendedIf yes, is that about birth0;10=No; 1=YesNWSPM21b_R03
nwspm22aIntegerRecommendedDid any of those traumatic events or the emotions cause Problems with your school/job0;10=No; 1=YesNWSPM22a_R03
nwspm22bIntegerRecommendedDid any of those traumatic events or the emotions cause Problems with your physical health0;10=No; 1=YesNWSPM22b_R03
nwspm22cIntegerRecommendedDid any of those traumatic events or the emotions cause Problems with family members or friends0;10=No; 1=YesNWSPM22c_R03
nwspm23IntegerRecommendedHow distressing have all these symptoms and problems been to you1::31=Very distressing; 2=A little distressing; 3=Not at all distressingNWSPM23_R03
nwspm24aIntegerRecommendedHave you ever been told that you suffer an illness called schizophrenia or bipolar disorder0;10=No; 1=YesNWSPM24a_R03
nwspm24bString25RecommendedIf yes, which oneschizophrenia or bipolar disorderNWSPM24b_R03
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: nwspm01 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.