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NDA Help Center

Filter Cart

The Filter Cart provides a way to query and access data for which you may be interested.  There are multiple places to go query and Add to Filter Cart (Sometimes called Download).  

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 add subjects, sometimes it may take a few minutes to populate.  You can continue to do other things 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 available for the subjects selected 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 available.  However, if you want to see all of the clinical and phenotype, then select, "Find All Subject Data" to see all the data avaialble for those subjects.  

when a secord or third filter is applied, an AND condition is used to determine the subjects that are exist in all filters.  If the subject does not appear in any filter, that subjects data will be excluded from your filter cart. Given the sparcity of data in the NDA, it is possible for no subjects to appear across filters.  If that happens, clear your filter cart, and start over.  

The NDA is looking to enhance query/filtering.  Until additional tools become available, it is best to package more data than you need and then package and download the data and use other tools to further restrict and analyze the data.  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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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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Montgomery-Asberg Depression Rating Scale



Download Definition as
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Element NameData TypeSizeRequiredDescriptionValue RangeNotesAliases
subjectkeyGUIDRequiredThe NDAR Global Unique Identifier (GUID) for research subjectNDAR*candidateguid, pseudo_guid, subject_key, z1
src_subject_idString20RequiredSubject ID how it's defined in lab/projectibisid, record_id, stepid, subjectid, z2
interview_dateDateRequiredDate on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYYRequired fieldconsented_study, date_interview_ses, date_taken, madrs_date, v10_madrs_date, v1_madrs_date, v2_madrs_date, v3_madrs_date, v4_madrs_date, v5_madrs_date, v6_madrs_date, v7_madrs_date, v8_madrs_date, v9_madrs_date, visit_date, z3
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.age_m_consent, candidate_age_in_months, v10_madrs_age, v1_madrs_age, v2_madrs_age, v3_madrs_age, v4_madrs_age, v5_madrs_age, v6_madrs_age, v7_madrs_age, v8_madrs_age, v9_madrs_age, z4
genderString20RequiredSex of the subjectM;FM = Male; F = Femalesex, z5
daysrzIntegerRecommendeddays since randomizationdayscons
pathwayIntegerRecommendedstep pathway1::91=SCP; 2=AD-Acute Depression; 3=REFD-Refractory Dep; 4=RELP-Relapse Prevent; 5=Psy-AD-Psychosocial; 6=Psy-REL-Psychosocial; 7=Omega 3; 8=LiMRS; 9=PAD-Psychosocial
visitString50RecommendedVisit nameCharacter description of each type of visitfktimepointid, visit_name
madrssadIntegerRecommendedReported sadness0::6;-7; -99990=Occasionally sadness in keeping with the circumstances; 2=Sad or low but brightens up without difficulty; 4=Pervasive feelings of sadness or gloominess; 6=Continuous or unvarying sadness; -7=Refused; -9999=NK/NA/Missingmadrs01, madrs_2, q2, v10_madrs_reportedsadness, v1_madrs_reportedsadness, v2_madrs_reportedsadness, v3_madrs_reportedsadness, v4_madrs_reportedsadness, v5_madrs_reportedsadness, v6_madrs_reportedsadness, v7_madrs_reportedsadness, v8_madrs_reportedsadness, v9_madrs_reportedsadness
madrspesIntegerRecommendedPessimistic thoughts0::6;-7; -99990=No pessimistic thoughts; 2=Fluctuating ideas of failure/ self-reproach/ or self-deprecation; 4=Persistent self accusations or definite but still rational ideas; 6=Delusions of ruin/remorse/unredeemable sin; -7=Refused; -9999=NK/NA/Missingmadrs02, madrs_9, q9, v10_madrs_pessimisticthoughts, v1_madrs_pessimisticthoughts, v2_madrs_pessimisticthoughts, v3_madrs_pessimisticthoughts, v4_madrs_pessimisticthoughts, v5_madrs_pessimisticthoughts, v6_madrs_pessimisticthoughts, v7_madrs_pessimisticthoughts, v8_madrs_pessimisticthoughts, v9_madrs_pessimisticthoughts
madrssuiIntegerRecommendedSuicidal thoughts0::6;-7; -99990=Enjoys life or takes it as it comes; 2=Weary of life. Only fleeting suicidal thoughts; 4=Probably better off dead; 6=Explicit plans for suicide when there is an opportunity; -7=Refused; -9999=NK/NA/Missingmadrs03, madrs_10, q10, v10_madrs_suicidalthoughts, v1_madrs_suicidalthoughts, v2_madrs_suicidalthoughts, v3_madrs_suicidalthoughts, v4_madrs_suicidalthoughts, v5_madrs_suicidalthoughts, v6_madrs_suicidalthoughts, v7_madrs_suicidalthoughts, v8_madrs_suicidalthoughts, v9_madrs_suicidalthoughts
madrsslpIntegerRecommendedReduced sleep0::6;-7; -99990=Sleeps as usual; 2=Slight difficulty dropping off to sleep or slightly reduced; 4=Sleep reduced or broken by at least 2 hours; 6=Less than 2 or 3 hours of sleep; -7=Refused; -9999=NK/NA/Missingmadrs04, madrs_4, q4, v10_madrs_reducedsleep, v1_madrs_reducedsleep, v2_madrs_reducedsleep, v3_madrs_reducedsleep, v4_madrs_reducedsleep, v5_madrs_reducedsleep, v6_madrs_reducedsleep, v7_madrs_reducedsleep, v8_madrs_reducedsleep, v9_madrs_reducedsleep
madrsfeeIntegerRecommendedInability to feel0::6;-7; -99990=Normal interest in the surroundings and in other people; 2=Reduced ability to enjoy usual interests; 4=Loss of interest in surroundings; 6=The experience of being emotionally paralyzed/inability to feel anger; -7=Refused; -9999=NK/NA/Missingmadrs05, madrs_8, q8, v10_madrs_inabilitytofeel, v1_madrs_inabilitytofeel, v2_madrs_inabilitytofeel, v3_madrs_inabilitytofeel, v4_madrs_inabilitytofeel, v5_madrs_inabilitytofeel, v6_madrs_inabilitytofeel, v7_madrs_inabilitytofeel, v8_madrs_inabilitytofeel, v9_madrs_inabilitytofeel
madrslasIntegerRecommendedLassitude0::6;-7; -99990=Hardly any difficulty getting started; 2=Difficulties starting activities; 4=Difficulties starting in simple routines which are carried out without effort; 6=Complete lassitude/unable to do anything without help; -7=Refused; -9999=NK/NA/Missingmadrs06, madrs_7, q7, v10_madrs_lassitude, v1_madrs_lassitude, v2_madrs_lassitude, v3_madrs_lassitude, v4_madrs_lassitude, v5_madrs_lassitude, v6_madrs_lassitude, v7_madrs_lassitude, v8_madrs_lassitude, v9_madrs_lassitude
madrsconIntegerRecommendedConcentration difficult0::6;-7; -99990=No difficulties in concentrating; 2=Occasional difficulties in collecting ones thoughts; 4=Difficulties in concentrating and sustaining thought; 6=Unable to read or converse without great difficulty; -7=Refused; -9999=NK/NA/Missingmadrs07, madrs_6, q6, v10_madrs_concentration, v1_madrs_concentration, v2_madrs_concentration, v3_madrs_concentration, v4_madrs_concentration, v5_madrs_concentration, v6_madrs_concentration, v7_madrs_concentration, v8_madrs_concentration, v9_madrs_concentration
madrstenIntegerRecommendedInner tension0::6;-7; -99990=Placid; 2=Occasional feelings of edginess and illdefined discomfort; 4=Continuous feeling of inner tension or intermittent panic; 6=Unrelenting dread or anguish; -7=Refused; -9999=NK/NA/Missingmadrs08, madrs_3, q3, v10_madrs_innertension, v1_madrs_innertension, v2_madrs_innertension, v3_madrs_innertension, v4_madrs_innertension, v5_madrs_innertension, v6_madrs_innertension, v7_madrs_innertension, v8_madrs_innertension, v9_madrs_innertension
madrsappIntegerRecommendedReduced appetite0::6;-7; -99990=Normal or increased appetite; 2=Slightly reduced appetite; 4=No appetite; 6=Needs persuasion to eat at all; -7=Refused; -9999=NK/NA/Missingmadrs09, madrs_5, q5, v10_madrs_reducedappetite, v1_madrs_reducedappetite, v2_madrs_reducedappetite, v3_madrs_reducedappetite, v4_madrs_reducedappetite, v5_madrs_reducedappetite, v6_madrs_reducedappetite, v7_madrs_reducedappetite, v8_madrs_reducedappetite, v9_madrs_reducedappetite
madrsapsIntegerRecommendedApparent sadness0::6;-7; -99990=No sadness; 2=Looks dispirited; 4=Appears sad and unhappy most of the time; 6=Looks miserable most of the time; -7=Refused; -9999=NK/NA/Missingmadrs10, madrs_1, q1, v10_madrs_apparentsadness, v1_madrs_apparentsadness, v2_madrs_apparentsadness, v3_madrs_apparentsadness, v4_madrs_apparentsadness, v5_madrs_apparentsadness, v6_madrs_apparentsadness, v7_madrs_apparentsadness, v8_madrs_apparentsadness, v9_madrs_apparentsadness
siteString100RecommendedSiteStudy Sitesite_id, site_uid, siteid
certcodeIntegerRecommendedstepbd certification code
madrstotIntegerRecommendedMADRS Total Scoremadrs_total, v10_madrs_totalscore, v1_madrs_totalscore, v2_madrs_totalscore, v3_madrs_totalscore, v4_madrs_totalscore, v5_madrs_totalscore, v6_madrs_totalscore, v7_madrs_totalscore, v8_madrs_totalscore, v9_madrs_totalscore
completedIntegerRecommendedChecks if completed0::30=No; 1=Yes; 2=Yes, lost; 3=Unverifiedtstst
date_updatedDateRecommendedDate record updatededit_date
session_idString20Recommendedsession ID/screening IDscreeningid
version_formString100RecommendedForm used/assessment nameform_name
reportedsadness_lengthIntegerRecommendedReported Sadness Depressed - How long?0::60= placid. only feelings inner tension; 2= occasional feelings of edginess and ill-defined discomfort; 4= continuous feelings of inner tension or intermittent panic which the patient can master with some difficulty; 6= unrelenting dread or anguish. overwhelming panicv10_madrs_reportedsadness_length, v1_madrs_reportedsadness_length, v2_madrs_reportedsadness_length, v3_madrs_reportedsadness_length, v4_madrs_reportedsadness_length, v5_madrs_reportedsadness_length, v6_madrs_reportedsadness_length, v7_madrs_reportedsadness_length, v8_madrs_reportedsadness_length, v9_madrs_reportedsadness_length
weekFloatRecommendedWeek in level/study99=week 10-week 14
days_baselineIntegerRecommendedDays since baseline
visnumFloatRecommendedNumeric Visit Number-1.5 = Pre-Screening; -1 = Screening; 0 = Baseline; ## = Visit ## (from 1 to 10); Whole numbers = standard monthly visits; #.001 - #.009 = Unscheduled; #.1 = End of Phase 1; #.2 = End of Phase 2; #.3 = End of Phase 3; #.4 = End of Open Choice Phase; #.5 = End of Study; #.6 = Genetic Analysis; 1000=all visits
me2IntegerRecommendedStatus0;10 = Past [Inactive]; 1 = Active
incslpIntegerRecommendedIncreased Sleep0::60 = Sleeps as usual or less sleep than usual.; 1 = 1; 2 = Up to 30 minutes additional sleep/day.; 3 = 3; 4 = At least 1 hours/day of additional sleep time.; 5 = 5; 6 = Over 2 hours of additional sleep time/day.
incappIntegerRecommendedIncreased Appetite0::60 = Normal or decreased appetite.; 1 = 1; 2 = Slightly increased appetite. ; 3 = 3; 4 = Increased appetite. Normal intake is not satisfying.; 5 = 5; 6 = Substantial increase in appetite. Needs limits or structure to control appetite.
irritbIntegerRecommendedIrritability0::60 = Occasional irritability appropriate to circumstances.; 1 = 1; 2 = Irritable, but can manage it without difficulty.; 3 = 3; 4 = Pervasive irritability--can managed, infrequent loss of control.; 5 = 5; 6 = Pervasive irritability-- unable to manage leading to routine loss of anger control (outbursts, tantrums, etc.).
totscr2IntegerRecommendedSum of questions 1 through 13
aescodeIntegerRecommendedStaff code number of person completing this formmadrs_interviewer
comments_miscString4,000RecommendedMiscellaneous comments on study, interview, methodology relevant to this form datamadrs_comments
dodeString10RecommendedDate of Data Entrymadrs_entered
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: madrs01 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.