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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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Geriatric Depression Scale



Download Definition as
Download Submission Template as
Element NameData TypeSizeRequiredDescriptionValue RangeNotesAliases
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.
sexString20RequiredSex of the subjectM;FM = Male; F = Femalegender
gds1IntegerRecommendedAre you basically satisfied with your life?0;10=No; 1=Yes
gds2IntegerRecommendedHave you dropped many of your activities and interests? reverse0;10=No; 1=Yes
gds3IntegerRecommendedDo you feel that your life is empty? Reverse0;10=No; 1=Yes
gds4IntegerRecommendedDo you often get bored? reverse0;10=No; 1=Yes
gds5IntegerRecommendedAre you hopeful about the future?0;10=No; 1=Yes
gds6IntegerRecommendedAre you bothered by thoughts you can't get out of your head? Reverse0;10=No; 1=Yes
gds7IntegerRecommendedAre you in good spirits most of the time?0;10=No; 1=Yes
gds8IntegerRecommendedAre you afraid that something bad is going to happen to you? Reverse0;10=No; 1=Yes
gds9IntegerRecommendedDo you feel happy most of the time?0;10=No; 1=Yes
gds10IntegerRecommendedDo you often feel helpless? reverse0;10=No; 1=Yes
gds11IntegerRecommendedDo you often get restless and fidgety? reverse0;10=No; 1=Yes
gds12IntegerRecommendedDo you prefer to stay at home, rather than going out and doing things? reverse0;10=No; 1=Yes
gds13IntegerRecommendedDo you frequently worry about the future? reverse0;10=No; 1=Yes
gds14IntegerRecommendedDo you feel that you have more problems with memory than most? reverse0;10=No; 1=Yes
gds15IntegerRecommendedDo you think that it is wonderful to be alive now?0;10=No; 1=Yes
gds16IntegerRecommendedDo you often feel downhearted and blue? reverse0;10=No; 1=Yes
gds17IntegerRecommendedDo you feel pretty worthless the way you are now? reverse0;10=No; 1=Yes
gds18IntegerRecommendedDo you worry a lot about the past? reverse0;10=No; 1=Yes
gds19IntegerRecommendedDo you find life very exciting?0;10=No; 1=Yes
gds20IntegerRecommendedIs it hard for you to get started on new projects? reverse0;10=No; 1=Yes
gds21IntegerRecommendedDo you feel full of energy?0;10=No; 1=Yes
gds22IntegerRecommendedDo you feel that your situation is hopeless? reverse0;10=No; 1=Yes
gds23IntegerRecommendedDo you think that most people are better off than you are? reverse0;10=No; 1=Yes
gds24IntegerRecommendedDo you frequently get upset over little things? reverse0;10=No; 1=Yes
gds25IntegerRecommendedDo you frequently feel like crying? reverse0;10=No; 1=Yes
gds26IntegerRecommendedDo you have trouble concentrating? reverse0;10=No; 1=Yes
gds27IntegerRecommendedDo you enjoy getting up in the morning?0;10=No; 1=Yes
gds28IntegerRecommendedDo you prefer to avoid social gatherings? reverse0;10=No; 1=Yes
gds29IntegerRecommendedIs it easy for you to make decisions?0;10=No; 1=Yes
gds30IntegerRecommendedIs your mind as clear as it used to be?0;10=No; 1=Yes
gdstotalIntegerRecommendedGeriatric Depression Scale Total
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: gerds01 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.