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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.

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Description
Value Range
Notes
Data Structures with shared data
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Drug Abuse Screening Test

dast

01

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 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
baseline_i_001IntegerRecommendedOver the past 12 months, have you used drugs other than those required for medical reasons?0;1; -888; -999;99990=No; 1=Yes; -888=Not Applicable; -999=Missing; 9999=no datadast_1
dast_2IntegerRecommendedHave you abused prescription drugs?0::1; 99990= No; 1= Yes; 9999= no data
dast_3IntegerRecommendedDo you abuse more than one drug at a time?0::1; 99990= No; 1= Yes; 9999= no data
dast_4IntegerRecommendedCan you get through the week without using drugs (other than those required for medical reasons)?0::1; 99990= No; 1= Yes; 9999= no data
dast_5IntegerRecommendedAre you always able to stop using drugs when you want to?0::1; 99990= No; 1= Yes; 9999= no data
dast_6IntegerRecommendedDo you abuse drugs on a continuous basis?0::1; 99990= No; 1= Yes; 9999= no data
dast_7IntegerRecommendedDo you try to limit your drug use to certain situations?0::1; 99990= No; 1= Yes; 9999= no data
dast_8IntegerRecommendedHave you had "blackouts" or "flashbacks" as a result of drug use?0::1; 99990= No; 1= Yes; 9999= no data
dast_9IntegerRecommendedDo you ever feel bad about your drug abuse?0::1; 99990= No; 1= Yes; 9999= no data
dast_10IntegerRecommendedDoes your spouse (or parents) ever complain about your involvement with drugs?0::1; 99990= No; 1= Yes; 9999= no data
dast_11IntegerRecommendedDo your friends or relatives know or suspect you abuse drugs?0::1; 99990= No; 1= Yes; 9999= no data
dast_12IntegerRecommendedHas drug abuse ever created problems between you and your spouse?0::1; 99990= No; 1= Yes; 9999= no data
dast_13IntegerRecommendedHas any family member ever sought help for problems related to your drug use?0::1; 99990= No; 1= Yes; 9999= no data
dast_14IntegerRecommendedHave you ever lost friends because of your use of drugs?0::1; 99990= No; 1= Yes; 9999= no data
dast_15IntegerRecommendedHave you ever neglected your family or missed work because of your use of drugs?0::1; 99990= No; 1= Yes; 9999= no data
dast_16IntegerRecommendedHave you ever been in trouble at work because of drug abuse?0::1; 99990= No; 1= Yes; 9999= no data
dast_17IntegerRecommendedHave you ever lost a job because of drug abuse?0::1; 99990= No; 1= Yes; 9999= no data
dast_18IntegerRecommendedHave you gotten into fights when under the influence of drugs?0::1; 99990= No; 1= Yes; 9999= no data
dast_19IntegerRecommendedHave you ever been arrested because of unusual behavior while under the influence of drugs?0::1; 99990= No; 1= Yes; 9999= no data
dast_20IntegerRecommendedHave you engaged in illegal activities in order to obtain drugs?0::1; 99990= No; 1= Yes; 9999= no data
dast_21IntegerRecommendedHave you ever been arrested for possession of illegal drugs?0::1; 99990= No; 1= Yes; 9999= no data
dast_22IntegerRecommendedHave you ever experienced withdrawal symptoms as a result of heavy drug intake?0::1; 99990= No; 1= Yes; 9999= no data
dast_23IntegerRecommendedHave you had medical problems as a result of your drug use (e.g., memory loss, hepatitis, convulsions, bleeding, etc.)?0::1; 99990= No; 1= Yes; 9999= no data
dast_24IntegerRecommendedHave you ever gone to anyone for help for a drug problem?0::1; 99990= No; 1= Yes; 9999= no data
dast_25IntegerRecommendedHave you ever been in a hospital for medical problems related to your drug use?0::1; 99990= No; 1= Yes; 9999= no data
dast_26IntegerRecommendedHave you ever been involved in a treatment program specifically related to drug use?0::1; 99990= No; 1= Yes; 9999= no data
dast_27IntegerRecommendedHave you been treated as an outpatient for problems related to drug abuse?0::1; 99990= No; 1= Yes; 9999= no data
dast_02_1IntegerRecommendedSince your last visit, have you used drugs other than those required for medical reasons?0::1; 99990= No; 1= Yes; 9999= no data
dast_02_2IntegerRecommendedSince your last visit, have you abused more than one drug at a time?0::1; 99990= No; 1= Yes; 9999= no data
dast_02_3IntegerRecommendedSince your last visit, were you always able to stop using drugs when you wanted to?0::1; 99990= No; 1= Yes; 9999= no data
dast_02_4IntegerRecommendedSince your last visit, have you had "blackouts" or "flashbacks" as a result of drug use?0::1; 99990= No; 1= Yes; 9999= no data
dast_02_5IntegerRecommendedSince your last visit, have you ever felt bad or guilty about your drug use?0::1; 99990= No; 1= Yes; 9999= no data
dast_02_6IntegerRecommendedSince your last visit, has your spouse (or parents) complained about your involvement with drugs?0::1; 99990= No; 1= Yes; 9999= no data
dast_02_7IntegerRecommendedSince your last visit, have you neglected your family because of your drug use?0::1; 99990= No; 1= Yes; 9999= no data
dast_02_8IntegerRecommendedSince your last visit, have you engaged in illegal activities in order to obtain drugs?0::1; 99990= No; 1= Yes; 9999= no data
dast_02_9IntegerRecommendedSince your last visit, have you had withdrawal symptoms when you stopped taking drugs?0::1; 99990= No; 1= Yes; 9999= no data
dast_02_10IntegerRecommendedSince your last visit, have you had medical problems as a result of your drug use?0::1; 99990= No; 1= Yes; 9999= no data
dast_2_20IntegerRecommendedHave you ever been arrested for driving while under the influence of drugs?0;1;99990=No; 1=Yes; 9999 = no data
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: dast01 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.