NDA Help Center

Login Dialog

Frequently Asked Questions


NDA Help Center

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



Reset Password

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.

Warning Notice

This is a U.S. Government computer system, which may be accessed and used only for authorized Government business by authorized personnel. Unauthorized access or use of this computer system may subject violators to criminal, civil, and/or administrative action. All information on this computer system may be intercepted, recorded, read, copied, and disclosed by and to authorized personnel for official purposes, including criminal investigations. Such information includes sensitive data encrypted to comply with confidentiality and privacy requirements. Access or use of this computer system by any person, whether authorized or unauthorized, constitutes consent to these terms. There is no right of privacy in this system.

Update Password

You have logged in with a temporary password. Please update your password. Passwords must contain 8 or more characters and must contain at least 3 of the following types of characters:

  • Uppercase
  • Lowercase
  • Numbers
  • Special Characters limited to: %,_,!,@,#,$,-,%,&,+,=,),(,*,^,:,;

Subscribe to our mailing list

Mailing List(s)
Email Format

You are now leaving the NIMH Data Archive (NDA) web site to go to:

Click on the address above if the page does not change within 10 seconds.


NDA is not responsible for the content of this external site and does not monitor other web sites for accuracy.

Accept Terms
Filter Cart
No filters selected
Value Range
Data Structures with shared data
No filters have been selected
Switch User

Adolescent Interview Follow Up Evaluation



Download Definition as
Download Submission Template as
Element NameData TypeSizeRequiredDescriptionValue RangeNotesAliases
subjectkeyGUIDRequiredThe NDAR Global Unique Identifier (GUID) for research subjectNDAR*guid
src_subject_idString20RequiredSubject ID how it's defined in lab/projectclinical_barcode
interview_dateDateRequiredDate on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYYRequired fielddate_time_alife_24_months, date_time_alife_6_months, date_time_alife_baseline
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.ch_age
sexString20RequiredSex of the subjectM;FM = Male; F = Femalech_sex, gender
alife1IntegerRecommendedDepression Rating0::66= Meets definite DSM-IV criteria for MDE and has either prominent psychotic symptoms or the mood symptoms cause extreme impairment in functioning; 5= Meets definite DSM-IV criteria for MDE, but no prominent psychotic symptoms and no extreme impairment in functioning; 4= Does not meet definite DSM-IV criteria, but has major symptoms or impairment from the disorder; 3= Considerably less psychopathology than full criteria with no more than moderate impairment in functioning, but still has obvious evidence of the disorder. This category may represent a worsening or an improvement in the patient's prior status; 2= Either patient claims not to be completely back to "usual self" or rater notes the presence of 1 or more symptoms of the disorder in no more than a mild degree; = Patient returns to "usual self" without any residual symptoms of this disorder; 0= Weekly status ratings
alife2IntegerRecommendedMania Rating0::66= Definite criteria (severe). Meets DSM-IV criteria for definite episode and has either prominent psychotic symptoms or extreme impairment in functioning; 5= Definite criteria. Meets DSM-IV criteria for definite, current episode, but has no prominent psychotic symptoms or extreme impairment in functioning; 1= Does not meet DSM-IV criteria for mania
alife3IntegerRecommendedHypomania Rating0::66= Severe intensity, full duration, and significant change in level of functioning; 5= Full intensity and full duration and change in level of functioning. Meets full DSM-IV criteria for hypomania, including change in level of functioning; 4= Full intensity and subthreshold/moderate duration, OR, subthreshold/moderate intensity and full duration (=BP NOS). Does not meet full criteria, but has major symptoms or impairment from disorder; 3= Subthreshold/moderate intensity and subthreshold/moderate duration, OR full intensity and brief duration, OR mild intensity and full duration. Considerably less psychopathology than full criteria with no more than moderate impairment in functioning, but still has obvious evidence of the disorder; 2= Mild intensity and brief duration. Either patient claims more symptoms of the disorder in no more than a mild degree (e.g. residual mood difficulties or 1-2 symptoms lasting less than a day); 1= Baseline. Subject returns to "usual self" without any residual symptoms of this disorder. However, significant symptomatology from an underlying condition/disorder may continue
alife4IntegerRecommendedDelusions Rating0::33= Definite; 2= Probable; 1= Absent
alife5IntegerRecommendedHallucinations Rating0::33= Definite; 2= Probable; 1= Absent
alife6IntegerRecommendedSuicidal Ideation Rating0::66= Extreme: has made preparations for a potentially serious suicide attempt; 5= Severe: often thinks of suicide and has thoughts of, or mentally rehearsed, a specific plan, or has made a suicidal gesture of a communicative rather than a potentially medically harmful type, or has heard a voice telling him to kill himself; 4= Moderate: often thinks of suicide and has thought of a specific method; 3= Mild: occasional thoughts of suicide and but has not thought of a specific method; 2= Slight: thoughts of his death (without suicidal thoughts), "I would be better off dead" or "I wish I were dead" or only in the context of anger; 1= Not at all; 0= No information
weekFloatRecommendedWeek in level/study99=week 10-week 14
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: aifue01 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.