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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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Selected Filters
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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

Value Range
Data Structures with shared data
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Depression Entry Form



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/projectstepid
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
daysrzIntegerRecommendeddays since randomization
certcodeIntegerRecommendedstepbd certification code
agege18IntegerRecommendedcurrent age ge 18 years0;1;-70=No; 1=Yes; -7=Refused
deprcritIntegerRecommendedmeets criteria major depression0;1;-70=No; 1=Yes; -7=Refused
btypeIntegerRecommendedbipolar type1;21=Bipolar Type I; 2=Bipolar Type II
taperrxIntegerRecommendedtapered antidepressants0;1;-70=No; 1=Yes; -7=Refused
moodstabIntegerRecommendedmood stabilizer treatment0;1;-70=No; 1=Yes; -7=Refused
usingbcIntegerRecommendedcurrently using birth control0;1;-70=No; 1=Yes; -7=Refusedbcontrol
unresponIntegerRecommendedunresponsive to treatment0;1;-70=No; 1=Yes; -7=Refusedfailstx
intolerIntegerRecommendedintolerance bupropion paroxetine0;1;-70=No; 1=Yes; -7=Refused
unstableIntegerRecommendedunstable or contradication to treatment with antidepressants0;1;-70=No; 1=Yes; -7=Refused
hypomaniIntegerRecommendedmixed episode or hypomania0;1;-70=No; 1=Yes; -7=Refused
subabuseIntegerRecommendedcurr substance abuse or depend0;1;-70=No; 1=Yes; -7=Refused
contrainIntegerRecommendedContraindication to mood stabilizers0;1;-70=No; 1=Yes; -7=Refused
othstudyIntegerRecommendedPatient participating in Non-STEP-BD study0;1;-70=No; 1=Yes; -7=Refusednonstep
pregnantIntegerRecommendedPatient is currently pregnant0::2;-7; 9990=No; 1=Yes;2=DK;-7= Refused; 999=Legimately skipped
pronsetIntegerRecommendedprior to onset of episode1::31=Remission longer than 8 weeks; 2=manic/hypomanic; 3=mixed/cycling
lithIntegerRecommendedlithium yes no0;1;-70=No; 1=Yes; -7=Refused
litdoseFloatRecommendedlithium dose in serum
carbIntegerRecommendedcarbamazepine0;1;-70=No; 1=Yes; -7=Refused
carbdoseFloatRecommendedcarbamazepine dose
valpIntegerRecommendedvalproate0;1;-70=No; 1=Yes; -7=Refused
valdoseFloatRecommendedvalproate dose in serum
gabIntegerRecommendedgabapentin0;1;-70=No; 1=Yes; -7=Refused
gabdoseFloatRecommendedgabapentin daily dose
lamictalIntegerRecommendedlamotrigine lamictal0;1;-70=No; 1=Yes; -7=Refusedlam
lamdoseFloatRecommendedlamotrigine daily dose
zyprexaIntegerRecommendedzyprexa olanzapine0;1;-70=No; 1=Yes; -7=Refusedolan
olandoseFloatRecommendedolanzapine daily dose-999=legitimately skipped
othmsIntegerRecommendedother putative mood stabilizer0;1;-70=No; 1=Yes; -7=Refused
othdoseFloatRecommendedother mood stab daily dose
othunitIntegerRecommendedother mood stab unit1::31=mmol/L; 2=ug/ml; 3=mg
othdose2FloatRecommendedother mood stab daily dose
othunit2IntegerRecommendedother mood stab unit 21::31=mmol/L; 2=ug/ml; 3=mg
askrandIntegerRecommendedasked patient to be randomized0;1;-70=No; 1=Yes; -7=Refused
ptconIntegerRecommendedPatient consented
0=No; 1=Yesconsent
rcpentryIntegerRecommendedconsent days since randomization
adtxoptIntegerRecommendedAcute Depression treatment option1::31=Paroxetine/placebo; 2=Bupropion/placebo; 3=No Preference
whytreatIntegerRecommendedwhy choose this treatment1::41=Proven non-responsive to other treatment option; 2=Patient symptoms consistent with treatment chosen; 3=Concerned about side effects of other choice; 4=Other, specify
pttxIntegerRecommendedprevious patient treatment protocols0;1;-70=No; 1=Yes; -7=Refused
askpsytxIntegerRecommendedasked patient psychosocial treatment0;1;-70=No; 1=Yes; -7=Refused
accpsytxIntegerRecommendedaccepatiented rand psychosocial treatment0;1;-70=No; 1=Yes; -7=Refused
stoptherIntegerRecommendedagree to stop other therapy0;1;-70=No; 1=Yes; -7=Refused
othrpartIntegerRecommendedDoes the patient have a family member, a spouse, or close friend who would be willing to take part in treatment?0;1;-70=No; 1=Yes; -7=Refused
willpartIntegerRecommendedpatient willing others psycho treatment0;1;-70=No; 1=Yes; -7=Refused
siteString100RecommendedSiteStudy Sitesite_id, siteid
adineligIntegerRecommendedineligible for acute depression pharmacotherapy study0;1;-70=No; 1=Yes; -7=Refused
refuseadIntegerRecommendedHas the patient been deemed fully eligible for the acute depression pharmacology study but has refused it0;1;-70=No; 1=Yes; -7=Refused
takmdstaIntegerRecommendedmost currently take mood stabilizers0;1;-7; 9990=No; 1=Yes; -7=Refused; 999=missing
offerectIntegerRecommendedpatient offered electroconvulsive therapy0;1;-70=No; 1=Yes; -7=Refused
inaprcpIntegerRecommendedpatient inappropriate for rcp0;1;-70=No; 1=Yes; -7=Refused
intolmedIntegerRecommendedHistory of intolerance to more than one of the following: inositol, lamotrigine, or risperidone0;1;-70=No; 1=Yes; -7=Refused
rdiseaseIntegerRecommendedretinal disease0;1;-70=No; 1=Yes; -7=Refused
reftreatIntegerRecommendedtreatment option1::41=Lamotrigine/Inositol; 2=Risperidone/Inositol; 3=Lamotrigine/Risperidone; 4=No preference
ptinrefdIntegerRecommendedPatient is in refractory depression pathway0;1;-70=No; 1=Yes; -7=Refused
more4refIntegerRecommended> 4 weeks in refractory depression pathway0;1;-70=No; 1=Yes; -7=Refused
less6refIntegerRecommended< 6 weeks in refractory depression pathway0;1;-70=No; 1=Yes; -7=Refused
ssriIntegerRecommendedPatient is currently taking SSRI0;1;-7; 9990=No; 1=Yes; -7=Refused; 999=missing
tprozacIntegerRecommendedPatient is currently taking Prozac0;1;-70=No; 1=Yes; -7=Refused
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: ad01 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.