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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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Early Screening for Autistic Traits-ESAT



The Early Screening for Autistic Traits (ESAT) measure used in the Early Steps Study as defined by Dr. Sally Rogers' lab at UC, Davis

Download Definition as
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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 fieldAddate
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.ADagemos
genderString20RequiredSex of the subjectM;FM = Male; F = FemaleSEX
Mother;Father;Both; Child; Other; Parent
esat01String10Required1. Is your child interested in different sorts of objects and not for instance mainly in cars oYes; No; Missing
esat02String10Required2. Can your child play with toys in varied ways (not just fiddling, mouthing or dropping them)Yes; No; Missing
esat03String10Required3. When your child expresses his/her feelings, for instance by crying or smiling, is that mostlYes; No; Missing
esat04String10Required4. Does your child react in a normal way to sensory stimulation, such as (coldness, warmth), liYes; No; Missing
esat05String10Required5. Can you easily tell from the face of the child how he/she feels?Yes; No; Missing
esat06String10Required6. Is it easy to make eye contact with your child?Yes; No; Missing
esat07String10Required7. When your child has been left alone for some time, does he/she try to attract your attentionYes; No; Missing
esat08String10Required8. Is the behavior of your child without stereotyped repetitive movements like banging his/herYes; No; Missing
esat09String10Required9. Does your child, on his/her own accord, ever bring objects over to you or show you somethingYes; No; Missing
esat10String10Required10. Does your child show to be interested in other children or adults?Yes; No; Missing
esat11String10Required11. Does your child like to be cuddled?Yes; No; Missing
esat12String10Required12. Does your child ever smile at you or at other people?Yes; No; Missing
esat13String10Required13. Does your child like playing games with others, such as peek-a-boo, ride on someone's kneeYes; No; Missing
esat14String10Required14. Does your child react when spoken to, for instance, by looking, listening, smiling, speakinYes; No; Missing
esatsumIntegerRequiredESAT Number of "No" responses0 :: 14If more than 3 of the questions are answered with "no", then the child is referred on for additional screening
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: esat01 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.