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Frequently Asked Questions


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Filter Cart

The Filter Cart provides a powerful way to query and access data for which you may be interested.  

A few points related to the filter cart are important to understand with the NDA Query/Filter implementation: 

First, the filter cart is populated asyncronously.  So, when you run a query, it may take a moment to populate but this will happen in the background so you can define other queries during this time.  

When you are adding your first filter, all data associated with your query will be added to the filter cart (whether it be a collection, a concept, a study, a data structure/elment or subjects). Not all data structures or collections will necessarily be displayed.  For example, if you select the NDA imaging structure image03, and further restrict that query to scan_type fMRI, only fMRI images will appear and only the image03 structure will be shown.  To see other data structures, select "Find All Subject Data" which will query all data for those subjects. When a secord or third filter is applied, an AND condition is used.  A subject must exist in all filters.  If the subject does not appear in any one filter, that subjects data will not be included in your filter cart. If that happens, clear your filter cart, and start over.  

It is best to package more data than you need and access those data using other tools, independent of the NDA (e.g. miNDAR snapshot), to limit the data selected.  If you have any questions on data access, are interested in using avaialble web services, or need help accessing data, please contact us for assistance.  

Frequently Asked Questions



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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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Medical and Psychiatrical History Form



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_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.v1_mh_age, v1_ph_age
interview_dateDateRequiredDate on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYYRequired fieldv1_mh_date, v1_ph_date
sexString20RequiredSex of the subjectM;FM = Male; F = Femalegender
dsmcritIntegerRecommendedMeets criteria for Bipolar Disorder, Type I or II0;1;-70=No; 1=Yes; -7=Refusedv1_ph_clindiagnosisbd
dageIntegerRecommendedAge at onset of first MDE (major depressive episode)-9=Unknownv1_ph_age_first_de
v1_ph_age_first_treatment_deIntegerRecommendedAge at first treatment of depression
lifetime_episodes_depressionIntegerRecommendedNumber of lifetime depressed episodesv1_ph_lifetime_des
firstmanIntegerRecommendedage at first manic episodev1_ph_age_first_me
v1_ph_age_first_treatment_meIntegerRecommendedAge at first treatment of manic episode
manic_manepsIntegerRecommendedManic and Hypomania Total Number of Manic Episodesv1_ph_lifetime_mes
v1_ph_hospitalization_deIntegerRecommendedHospitalization for depressive episode0;10= no; 1= yes
v1_ph_hospitalization_denIntegerRecommendedPsych History Number of hospitalizations for depressive episodes
v1_ph_hospitalization_meIntegerRecommendedHospitalization for manic episode0;10= no; 1= yes
v1_ph_hospitalization_menIntegerRecommendedPsych History Number of hospitalizations for manic episodes
v1_ph_current_depressionIntegerRecommendedCurrent episode is depression0;10= no; 1= yes
v1_ph_startdate_current_deDateRecommendedStart date of current depressive episode
ksas23IntegerRecommendedMajor Depressive Episode, Current Episode, Duration (weeks)v1_ph_length_current_de
v1_ph_bdmeds_noresponseIntegerRecommendedNumber of current BD medications subject did not respond to
asaps01gIntegerRecommendedSuicide attempt0;10 = No;1 = Yesv1_ph_suicide_attempt
suicidalityatt_lifetime_totIntegerRecommendedNumber of Lifetime Suicide Attemptsv1_ph_lifetime_suicideattempts
pu_suicdmoString20RecommendedNumber of suicide attempts monthv1_ph_suicideattempts_pastmonth
v1_mh_alcohol_statusIntegerRecommendedAlcohol Use - Status0::20= current; 1= former; 2= never
v1_mh_alcohol_frequencyIntegerRecommendedAlcohol Use - Frequency0::40= daily; 1= weekly; 2= biweekly; 3= monthly; 4= occasionally
v1_mh_alcohol_amountIntegerRecommendedAlcohol Use - Amount (drinks/week)
v1_mh_nicotine_statusIntegerRecommendedNicotine Use - Status0::20= current; 1= former; 2= never
v1_mh_nicotine_frequencyIntegerRecommendedNicotine Use - Frequency0::40= daily; 1= weekly; 2= biweekly; 3= monthly; 4= occasionally
v1_mh_nicotine_amountIntegerRecommendedNicotine Use - Amount (packs/week)
v1_mh_cap1String500RecommendedCondition/Abnormality/Procedure 1v1_mh_cap
migraineIntegerRecommendedmigraine headaches0;1;-70=No; 1=Yes; -7=Refused
elv_bpIntegerRecommendedElevated Blood Pressure at the visit: systolic blood pressure >= 130 mmHg or diastolic blood pressure >= 85 mmHg0;10=No; 1=Yesraised_bp
cr2IntegerRecommendedDiabetes Mellitus0;10 = No current diabetes or random BS < 220;1 = Diagnosis of diabetes or random BS >220diabetes
version_formString100RecommendedForm used/assessment name
central_obesityIntegerRecommendedCentral obesity (ethnicity-specific waist circumference)0 :: 1 0 = no; 1 = yes
bmi_obesityIntegerRecommendedBMI >= 300 :: 10 = no; 1 = yes
raised_triglyceridesIntegerRecommendedRaised triglycerides (greater than 1.7 mmol/L for males, greater than 1.29 mmol/L for females, or treatment for lipid abnormality)0 :: 10 = no; 1 = yes
reduced_hdlIntegerRecommendedReduced HDL (<1.03 mmol/L for males, <1.29 mmol/L for females, or treatment for lipid abnormality)0 :: 10 = no; 1 = yes
crit1_summaryIntegerRecommendedMeet obesity (WC or BMI) plus trig/hdl/bp criterion item0 :: 10 = no; 1 = yes
inflammatory_bowel_diseaseIntegerRecommendedInflammatory bowel disease (ulcerative colitis, Crohn's disease)0 :: 10 = no; 1 = yes
rheum_disorder_psoriasisIntegerRecommendedRheumatological disorders (rheumatoid arthritis); psoriasis0 :: 10 = no; 1 = yesrheumatological_disorder_psoriasis
cigarette_smokingIntegerRecommendedSmoking cigarettes (daily - minimum half a pack)0 :: 10 = no; 1 = yes
high_crpIntegerRecommendedC-reactive protein greater than or equal to 5 mg/L0 :: 10 = no; 1 = yes
total_number_inflam_criteriaIntegerRecommendedTotal number of inflammatory criteria met DOES NOT INCL MIGRAINE0 :: 999
v1_mh_cap_total_numberIntegerRecommendedCondition/Abnormality/Procedures - Total number of items mentioned in v1_MH_CAP0 :: 999
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: mphf01 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.