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Filter Cart

Viewable at the top right of NDA pages, the Filter Cart is a temporary holder for filters and data they select. Filters are added to the Workspace first, before being submitted to The Filter Cart. Data selected by filters in the Filter Cart can be added to a Data Package or an NDA Study from the Data Packaging Page, by clicking the 'Create Data Package / Add Data to Study' button.

The filter cart supports combining multiple filters together, and depending on filter type will use "AND" or "OR"  when combining filters.

Multiple selections from the same filter type will result in those selections being applied with an ‘OR’ condition. For example, if you add an NDA Collection Filter with selections for both collections 2112 and 2563 to an empty Workspace, the subjects from NDA Collection 2112 ‘OR’ NDA Collection 2563 will be added to your Workspace even if a subject is in both NDA Collections. You can then add other NDA Collections to your Workspace which further extends the ‘OR’ condition.

If a different filter type is added to your Workspace, or a filter has already been submitted to the Filter Cart, the operation then performs a logical ‘AND’ operation. This means that given the subjects returned from the first filter, only those subjects that matched the first filter are returned by the second filter (i.e., subjects that satisfied both filters). Note that only the subjects specific to your filter will be added to your Filter Cart and only on data shared with the research community. Other data for those same subjects may exist (i.e., within another NDA Collection, associated with a data structure that was not requested in the query, etc.). So, users should select ‘Find all Subjects Data’ to identify all data for those specific subjects. 

Additional Tips:

  • You may query the data without an account, but to gain access you will need to create an NDA user account and apply for access.  Most data access requires that you or your lab are sponsored by an NIH recognized institution with Federal Wide Assurance (FWA).  Without access, you will not be able to obtain individual-level data. 

    Once you have selected data of interest you can:
  • Create a data package - This allows you to specify format for access/download
  • Assign to Study Cohort - Associate the data to an NDA Study allowing for a DOI to be generated and the data to be linked directly to a finding, publication, or data release. 
  • Find All Subject Data - Depending on filter types being used, not all data associated with a subject will be selected.  Data may be restricted by data structure, NDA Collection, or outcome variables (e.g., NDA Study). ‘Find All Data’ expands the fliter criteria by replacing all filters in your Filter Cart with a single Query by GUID filter for all subjects selected by those filters.

    Please Note:
  • When running a query, it may take a moment to populate the Filter Cart. Queries happen in the background so you can define other queries during this time. 
  • When you add your first filter, all data associated with your query will be added to the Filter Cart (e.g., a Concept, an NDA Collection, a Data Structure/Element, etc.). As you add additional filters, they will also display in the Filter Cart. Only the name of filter will be shown in the Filter Cart, not the underlying structures. 
  • Information about the contents of the Filter Cart can be seen by clicking "Edit”.
  • Once your results appear in the Filter Cart, you can create a data package or assign subjects to a study by selecting the 'Package/Assign to Study' option. You can also 'Edit' or 'Clear' filters.

Frequently Asked Questions

  • The Filter Cart currently employs basic AND/OR Boolean logic. A single filter may contain multiple selections for that filter type, e.g., a single NDA Study filter might contain NDA Study 1 and NDA Study 2. A subject that is in EITHER 1 OR 2 will be returned.  Adding multiple filters to the cart, regardless of type, will AND the result of each filter.  If NDA Study 1 and NDA Study 2 are added as individual filters, data for a subject will only be selected if the subject is included in  BOTH 1 AND 2.

  • Viewable at the top right of NDA pages, the Filter Cart is a temporary holder of data identified by the user, through querying or browsing, as being of some potential interest. The Filter Cart is where you send the data from your Workspace after it has been filtered.

  • After filters are added to the Filter Cart, users have options to ‘Create a Package’ for download, ‘Associate to Study Cohort’, or ‘Find All Subject Data’. Selecting ‘Find All Subject Data’ identifies and pulls all data for the subjects into the Filter Cart. Choosing ‘Create a Package’ allows users to package and name their query information for download. Choosing ‘Associate to Study Cohort’ gives users the opportunity to choose the Study Cohort they wish to associate this data.


  • Once your filter cart contains the subjects of interest, select Create Data Package/Assign to Data Study which will provide options for accessing item level data and/or assigning to a study.  

  • Once queries have been added to your workspace, the next step is to Submit the Filters in the workspace to the Filter Cart.  This process runs the queries selected, saving the results within a filter cart attached to your account.  

  • The Workspace within the General Query Tool is a holding area where you can review your pending filters prior to adding them to Filter Cart. Therefore, the first step in accessing data is to select one or more items and move it into the Workspace. 


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.

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Childhood Adversity Interview

110 Shared Subjects

Clinical Assessments
Adverse Events
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Query Element Name Data Type Size Required Description Value Range Notes Aliases
subjectkey GUID Required The NDAR Global Unique Identifier (GUID) for research subject NDAR*
src_subject_id String 20 Required Subject ID how it's defined in lab/project
interview_date Date Required Date on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYY cai_rpt_date
interview_age Integer Required Age in months at the time of the interview/test/sampling/imaging. 0 :: 1260 Age 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.
sex String 20 Required Sex of the subject M;F; O; NR M = Male; F = Female; O=Other; NR = Not reported gender
version_form String 121 Recommended Form used/assessment name
comqother String 255 Recommended Respondent - Other (text)
aescode Integer Recommended Staff code number of person completing this form
cai_1 Float Recommended Separation/Loss of Primary Caretakers Severity Rating (lasting 6 months or longer) 1::5 1 = No separation; 1.5 = Mild separation; 2 = Moderate separation; 3 = Loss/severe separation; 4 = Severe loss; 5 = Extreme loss - Scores increase by 0.50 if: child has no communication/contact with absent caregiver (in non-death cases), new caregiver is unfamiliar, child witnesses the dead of caregiver or if caregiver committed suicide, or child abused by new caregiver. Score increases by 0.25 if new caregiver is familiar but not primary (e.g., grandmother but not father) cai_2, cai_3
cai_4 Integer Recommended Number of Separations (lasting 6 months or longer) 0::100
cai_5 Integer Recommended Life-threatening Illness/Injury/Non- Caretaker Loss Severity Rating (lasting 6 months or longer) 1::5 1 = No illness or injury in self or close contacts, and no non-caretaker loss; 2 = Life-threatening illness or injury of a sibling OR non-caretaker loss; 3 = Loss of sibling or close friend; 4 = Life-threatining illness or injury to parent or caretaker; 5 = Life-threatening illness or injury to self cai_6, cai_7
cai_8 Integer Recommended Physical Neglect Severity Rating (lasting 6 months or longer) 1::5 1 = No neglect; 2 = Neglect; 3 = Moderate neglect; 4 = Severe neglect; 5 = Extreme neglect cai_10, cai_9
cai_11 Integer Recommended Emotional Abuse/Assault Severity Rating (lasting 6 months or longer) 1::5 1 = No emotional abuse; 2 = Emotional abuse; 3 = Moderate emotional abuse; 4 = Severe emotional abuse; 5 = Extreme emotional abuse cai_12, cai_13
cai_14 Float Recommended Physical Abuse/Assault Severity Rating (lasting 6 months or longer) 1::5 1 = No physical abuse; 2 = Physical abuse; 3 = Moderate physical abuse; 4 = Severe physical abuse; 5 = Extreme physical abuse - Score increases by 0.50 if physical abuse takes place 1 or more times per week cai_15, cai_16
cai_17 Float Recommended Witnessing Violence Rating (lasting 6 months or longer) 1::5 1 = No witnessing violence; 2 = Witnessing violence; 3 = Moderate witnessing violence; 4 = Severe witnessing violence; 5 = Extreme witnessing violence - Score increases by 0.50 if witnessing violence takes place 1 or more times per week cai_18, cai_19
cai_20 Float Recommended Sexual Abuse/Assault Severity Rating (lasting 6 months or longer) 1::5 1 = No sexual abuse/assault; 2 = Sexual abuse; 3 = Moderate sexual abuse; 4 = Severe sexual abuse; 5 = Extreme sexual abuse - Score DECREASES by 0.50 if the perpetrator is a non-primary caregiver or abuse involved indirect contact (e.g., through clothes) - Score INCREASES by 0.50 if sexual abuse involved threats of injury or took place 1 or more times per year - Score INCREASES by 1 if sexual abuse took place 1 or more times per month cai_21, cai_22
cai_23 String 300 Recommended Perpetrators (no names)
cai_total Float Recommended Childhood Adversity Index Total Score 7::35 Can accept decimal answers in case any regular item had a decimal answer
cai_mal Integer Recommended Presence of maltreatment 0;1 0 = Absent; 1 = Present
comments_misc String 4,000 Recommended Miscellaneous comments on study, interview, methodology relevant to this form data
cai_peer Integer Recommended Peer victimization (lasting 6 months or longer) 1::5 1 = No peer victimization ; 5 = Extreme peer victimization
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.