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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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Data Structures with shared data
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Family Mental history



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/projectPID
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.
interview_dateDateRequiredDate on which the interview/genetic test/sampling/imaging was completed. MM/DD/YYYYRequired field
genderString20RequiredSex of the subjectM;FM = Male; F = Female
visitString50RecommendedVisit nameCharacter description of each type of visitTIMEPT
visdayIntegerRecommendedNumber of days from study baseline to date of visitDAYFAMHX
siteString100RecommendedSiteStudy Site
seqnorelIntegerRecommendedSequence number of first degree relative reported1::81 = first completed:8 = eighth completedSEQNO
respondIntegerRecommendedRespondent1::4;9991 = Parent; 2 = Teacher; 3=Self; 4= Other; 999 = Not available
respond_detailIntegerRecommendedRespondent detail1::8;9991 = Mother; 2 = Father; 3 = Other relative or custodial adult; 4 = Teacher or caregiver; 5 = Other specialist; 6 = Other; 7 = Child; 8= Spouse; 999 = Not available
relationshipString255RecommendedRelationship of respondent to individual
1;2;3;4;5;6;7;8;9;10;11;12;13;14;15;16;17;18;19;20;21;22;23;24;25;26;27;28;29;30;31;32;33;34;35;36;37;38;39;40;41;42;43;44;45;46;47;48;49;50;51;52;53;54;55;56;57;58;59;60;61;62;63;64;65;66;67;68;69;70;71;72;73;74;75;76;77;78;79;80;81;82;83;84; -999
1 = Biological mom; 2 = Biological dad; 3 = Grandparent; 4 = Special education (sped) teacher; 5 = General education teacher; 6 = Occupational therapist; 7 = Speech and language therapist; 8 = Behavioral therapist; 9 = Paraprofessional; 10 = Aide; 11 = Principal; 12 = Administrator; 13 = Other; 14 = Content teacher; 15 = Parent center director; 16 = Self; 17=Adoptive mother; 18=Adoptive father; 19=Foster mother; 20 = Foster father; 21=Grandmother; 22=Grandfather; 23=Step-mother; 24 = Step-father; 25=Aunt; 26=Uncle; 27=Missing Data; 28=Both parents;31= Grandmother from mother side; 32= Grandfather from mother side; 33= Grandmother from father side; 34= Grandfather from father side; 36= Brother; 37= Sister; 38= Cousin; 39= female caregiver; 40=male caregiver; 41=Female child; 42=Male child; 43=Spouse/Mate; 44=Friend; 45=Parent; 46=Significant other; 47=Sibling; 48=Son/Daughter; 49=Son-in-law/Daughter-in law; 50=Other Relative; 51=Paid caregiver; 52=Friends; 90= Other, specify; -999= Missing; 53=Roommate; 54=Supervisor; 55=mother's boyfriend; 56=other parental figure; 57=Summary; 58=counselor ; 59 = other female relative; 60 = other male relative; 61 = non-relative ;62=Maternal Aunt; 63=Maternal Uncle; 64=Maternal Cousin; 65 = Paternal Aunt; 66=Paternal Uncle; 67=Paternal Cousin ;68=Biological/Adoptive Mother and Grandmother; 69=Biological/Adoptive Mother and Stepmother and Grandmother; 70=Biological/Adoptive Mother and Grandmother and Foster Father; 71=Biological/Adoptive Mother and Stepmother and Foster Mother; 72=Biological/Adoptive Mother and Foster Mother; 73=Biological/Adoptive Mother and Biological/Adoptive Father; 74=Biological/Adoptive Mother and Stepmother and Biological/Adoptive Father; 75=Biological/Adoptive Mother and Other; 76=Biological/Adoptive Mother and Stepmother and Stepfather; 77=Biological/Adoptive Mother and Stepfather; 78=Biological/Adoptive Mother and Grandfather; 79=Biological/Adoptive Mother and Stepmother and Foster Father; 80=Biological/Adoptive Mother and Stepmother; 81=Guardian, female; 82=Other female; 83=Guardian, male; 84=Other male
respondent_other_specifyString50RecommendedRespondent: Other (specify)
resp_ageIntegerRecommendedRespondent's age0::1200In months
rdeppIntegerRecommendedPast depression0::30 = no disorder;1 = possible;2 = probable;3 = definite
rdepcIntegerRecommendedCurrent depression0::30 = no disorder;1 = possible;2 = probable;3 = definite
rrecdepIntegerRecommendedRecurrent depression0;10 = not indicated;1 = yes
rbippIntegerRecommendedPast bipolar disorder0::30 = no disorder;1 = possible;2 = probable;3 = definite
rbipcIntegerRecommendedCurrent bipolar disorder0::30 = no disorder;1 = possible;2 = probable;3 = definite
rrecbipIntegerRecommendedRecurrent bipolar disorder0;10 = not indicated;1 = yes
ranxpIntegerRecommendedPast anxiety0::30 = no disorder;1 = possible;2 = probable;3 = definite
ranxcIntegerRecommendedCurrent anxiety0::30 = no disorder;1 = possible;2 = probable;3 = definite
rrecanxIntegerRecommendedRecurrent anxiety0;10 = not indicated;1 = yes
rsapIntegerRecommendedPast substance abuse0::30 = no disorder;1 = possible;2 = probable;3 = definite
rsacIntegerRecommendedCurrent substance abuse0::30 = no disorder;1 = possible;2 = probable;3 = definite
rrecsaIntegerRecommendedRecurrent substance abuse0;10 = not indicated;1 = yes
radhdpIntegerRecommendedPast ADHD0::30 = no disorder;1 = possible;2 = probable;3 = definite
radhdcIntegerRecommendedCurrent ADHD0::30 = no disorder;1 = possible;2 = probable;3 = definite
rrecadhdIntegerRecommendedRecurrent ADHD0;10 = not indicated;1 = yes
roddcdpIntegerRecommendedPast ODD/CD0::30 = no disorder;1 = possible;2 = probable;3 = definite
roddcdcIntegerRecommendedCurrent ODD/CD0::30 = no disorder;1 = possible;2 = probable;3 = definite
rrecoddIntegerRecommendedRecurrent ODD/CD0;10 = not indicated;1 = yes
rlawpIntegerRecommendedPast significant law problems0::30 = no disorder;1 = possible;2 = probable;3 = definite
rlawcIntegerRecommendedCurrent significant law problems0::30 = no disorder;1 = possible;2 = probable;3 = definite
rreclawIntegerRecommendedRecurrent significant law problems0;10 = not indicated;1 = yes
rsuibpIntegerRecommendedPast suicidal behavior0::30 = no disorder;1 = possible;2 = probable;3 = definite
rsuibcIntegerRecommendedCurrent suicidal behavior0::30 = no disorder;1 = possible;2 = probable;3 = definite
rrecsuibIntegerRecommendedRecurrent suicidal behavior0;10 = not indicated;1 = yes
rsuicpIntegerRecommendedPast suicide0::20 = no;1 = attempt;2 = complete
rsuiccIntegerRecommendedCurrent suicide0::20 = no;1 = attempt;2 = complete
rrecsuicIntegerRecommendedRecurrent suicide0;10 = not indicated;1 = yes
rreltrtIntegerRecommendedPast treatment0::30 = none;1 = outpatient;2 = inpatient;3 = both
rotherpFloatRecommendedOther past diagnosis295.3 = Schizophrenia, Paranoid type;296.3 = Major depressive disorder, recurrent unspecified;296.31 Major depressive disorder, recurrent Mild;299 = Autistic Disorder;299.8 = Asperger�s Disorder;300.02 = Generalized Anxiety Disorder;300.3 = Obsessive-compulsive disorder;307.5 = Eating Disorder NOS;309.9 = Adjustment disorder unspecified;314.9 = ADHD NOS;315 = Reading Learning Disability;315.9 = Learning Disability NOS;V10 = Unknown;V61.1 = Partner relational problem/Physical abuse of adult;PID = 519303 has a value of V10, whose meaning is unknown.
rothercFloatRecommendedOther current diagnosis295.3 = Schizophrenia, Paranoid type;299 = Autistic Disorder;299.8 = Asperger�s Disorder;300.01 = Panic Disorder Without agoraphobia;300.3 = Obsessive-compulsive disorder;307.2 = Tic disorder NOS;307.5 = Eating Disorder NOS;307.51 = Bulimia nervosa;314 = ADHD predominantly inattentive subtype;315 = Reading Learning Disability;315.9 = Learning Disability NOS;317 = Mild Mental Retardation;319 = Mental Retardation Severity unspecified
momtxIntegerRecommendedBiological Mother Mental Health Treatment History0::20 = none;1 = outpatient;2 = inpatient
dadtxIntegerRecommendedBiological Father Mental Health Treatment History0::20 = none;1 = outpatient;2 = inpatient
sibtxIntegerRecommendedBiological Sibling Mental Health Treatment History0::20 = none;1 = outpatient;2 = inpatient
momtxbiIntegerRecommendedBiological Mother Mental Health Treatment History - Binary0;10 = no;1 = yes
dadtxbiIntegerRecommendedBiological Father Mental Health Treatment History - Binary0;10 = no;1 = yes
sibtxbiIntegerRecommendedBiological Sibling Mental Health Treatment History - Binary0;10 = no;1 = yes
antacids_lengthIntegerRecommendedMother Antacids Medication Lengthmonths
antibio_lengthFloatRecommendedMother Antibiotics Medication Lengthmonths
herbal_lengthIntegerRecommendedMother Herbal Supplements Lengthmonths
demosam_048String100RecommendedList herbal supplements:
hormone_lengthIntegerRecommendedMother Hormone Supplement Lengthmonths
otv_antihist_lengthIntegerRecommendedMother OTC Antihistamines Lengthmonths
med_other_moString100RecommendedMother Other Medications Length
med_time_moIntegerRecommendedMother Other Medications Length
pnatal_vit_lengthIntegerRecommendedMother Prenatal Vitamin Lengthmonths
preterm_labor_lengthIntegerRecommendedMother Pre-term Labor Medication Length (wks)weeks
preg_dxdrugString10RecommendedUsed prescription medications during pregnancy?Yes; No; NKNK = Not known
mother_sicklecellString50RecommendedDoes the Child's Mother have Sickle Cell Anemia?Yes;No
preg_complicString10RecommendedComplications during pregnancy?Yes; No; NKNK = Not known
father_sicklecellString50RecommendedDoes the Child's Father have Sickle Cell Anemia?Yes;No
demo_preg_complicat_specString100RecommendedWhat were the complications experienced during pregnancy or birth?
neuro_mo_pregString10RecommendedMother had Neurological disorder during pregnancyyes;no;unknown
suic_phxIntegerRecommendedFamily history suicide0;10=Yes; 1=No
batmpnoIntegerRecommendedAt Baseline - number of family members who have attempted suicide (1 to 4)
reltnoIntegerRecommendedFamily member number this record is about (1st to 4th)
chf_num_suicide_attemptsIntegerRecommendedChecks number of suicide attempts
sheehan_11b_1String200RecommendedHow? Attempt suicide
suicatt_ageIntegerRecommendedAge at lifetime suicide attempt
methodsuicideIntegerRecommendedMethod of suicide1::171 = Firearm,2 = Hanging,3 = Jumping,4 = Drowning,5 = Stabbing,6 = Carbon Monoxide,7 = Overdose,8 = Cutting,9 = Car Accident,10 = Other; 11 = Ingestion of toxic substance; 12 = Burning;13=Drugs w/ Sedative Effects - BDZ/HYP; 14=Drugs w/ Sedative - Unknown; 15=Drugs w/out Sedative Effects/Ingested Suicide; 16=2h = Drugs w/out Sedative Effects/Ingested Suicide; 17=Shooting
lethscorIntegerRecommendedlethality score0::9;-7-7=Refused
days_baselineIntegerRecommendedDays since baseline
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: famhx01 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.