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Filter Cart

Viewable at the top right of NDA pages, the Filter Cart is a temporary holder for filters and data they select. Filters are added to the Workspace first, before being submitted to The Filter Cart. Data selected by filters in the Filter Cart can be added to a Data Package or an NDA Study from the Data Packaging Page, by clicking the 'Create Data Package / Add Data to Study' button.

The filter cart supports combining multiple filters together, and depending on filter type will use "AND" or "OR"  when combining filters.

Multiple selections from the same filter type will result in those selections being applied with an ‘OR’ condition. For example, if you add an NDA Collection Filter with selections for both collections 2112 and 2563 to an empty Workspace, the subjects from NDA Collection 2112 ‘OR’ NDA Collection 2563 will be added to your Workspace even if a subject is in both NDA Collections. You can then add other NDA Collections to your Workspace which further extends the ‘OR’ condition.

If a different filter type is added to your Workspace, or a filter has already been submitted to the Filter Cart, the operation then performs a logical ‘AND’ operation. This means that given the subjects returned from the first filter, only those subjects that matched the first filter are returned by the second filter (i.e., subjects that satisfied both filters). Note that only the subjects specific to your filter will be added to your Filter Cart and only on data shared with the research community. Other data for those same subjects may exist (i.e., within another NDA Collection, associated with a data structure that was not requested in the query, etc.). So, users should select ‘Find all Subjects Data’ to identify all data for those specific subjects. 

Additional Tips:

  • You may query the data without an account, but to gain access you will need to create an NDA user account and apply for access.  Most data access requires that you or your lab are sponsored by an NIH recognized institution with Federal Wide Assurance (FWA).  Without access, you will not be able to obtain individual-level data. 

    Once you have selected data of interest you can:
  • Create a data package - This allows you to specify format for access/download
  • Assign to Study Cohort - Associate the data to an NDA Study allowing for a DOI to be generated and the data to be linked directly to a finding, publication, or data release. 
  • Find All Subject Data - Depending on filter types being used, not all data associated with a subject will be selected.  Data may be restricted by data structure, NDA Collection, or outcome variables (e.g., NDA Study). ‘Find All Data’ expands the fliter criteria by replacing all filters in your Filter Cart with a single Query by GUID filter for all subjects selected by those filters.

    Please Note:
  • When running a query, it may take a moment to populate the Filter Cart. Queries happen in the background so you can define other queries during this time. 
  • When you add your first filter, all data associated with your query will be added to the Filter Cart (e.g., a Concept, an NDA Collection, a Data Structure/Element, etc.). As you add additional filters, they will also display in the Filter Cart. Only the name of filter will be shown in the Filter Cart, not the underlying structures. 
  • Information about the contents of the Filter Cart can be seen by clicking "Edit”.
  • Once your results appear in the Filter Cart, you can create a data package or assign subjects to a study by selecting the 'Package/Assign to Study' option. You can also 'Edit' or 'Clear' filters.

Frequently Asked Questions

  • The Filter Cart currently employs basic AND/OR Boolean logic. A single filter may contain multiple selections for that filter type, e.g., a single NDA Study filter might contain NDA Study 1 and NDA Study 2. A subject that is in EITHER 1 OR 2 will be returned.  Adding multiple filters to the cart, regardless of type, will AND the result of each filter.  If NDA Study 1 and NDA Study 2 are added as individual filters, data for a subject will only be selected if the subject is included in  BOTH 1 AND 2.

  • Viewable at the top right of NDA pages, the Filter Cart is a temporary holder of data identified by the user, through querying or browsing, as being of some potential interest. The Filter Cart is where you send the data from your Workspace after it has been filtered.

  • After filters are added to the Filter Cart, users have options to ‘Create a Package’ for download, ‘Associate to Study Cohort’, or ‘Find All Subject Data’. Selecting ‘Find All Subject Data’ identifies and pulls all data for the subjects into the Filter Cart. Choosing ‘Create a Package’ allows users to package and name their query information for download. Choosing ‘Associate to Study Cohort’ gives users the opportunity to choose the Study Cohort they wish to associate this data.


  • Once your filter cart contains the subjects of interest, select Create Data Package/Assign to Data Study which will provide options for accessing item level data and/or assigning to a study.  

  • Once queries have been added to your workspace, the next step is to Submit the Filters in the workspace to the Filter Cart.  This process runs the queries selected, saving the results within a filter cart attached to your account.  

  • The Workspace within the General Query Tool is a holding area where you can review your pending filters prior to adding them to Filter Cart. Therefore, the first step in accessing data is to select one or more items and move it into the Workspace. 


Reset Password

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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997 Shared Subjects

Clinical Assessments

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Query Element Name Data Type Size Required Description Value Range Notes Aliases
subjectkey GUID Required The NDAR Global Unique Identifier (GUID) for research subject NDAR* guid
src_subject_id String 20 Required Subject ID how it's defined in lab/project bid, subject_id, subjectid
interview_date Date Required Date on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYY Required field datacollecteddate, intvdate, v10_biobanking_date, v1_biobanking_date, v2_biobanking_date, v4_biobanking_date, v7_biobanking_date
interview_age Integer Required Age in months at the time of the interview/test/sampling/imaging. 0 :: 1260 Age 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. dema1, intvage, v10_biobanking_age, v1_biobanking_age, v2_biobanking_age, v4_biobanking_age, v7_biobanking_age
sex String 20 Required Sex of the subject M;F; O; NR M = Male; F = Female; O=Other; NR = Not reported dema2, gender
Query visitid Integer Recommended MetaTrial Visit ID System variable: unique code for each type of visit -use to merge files visitnumber
Query fseqno Integer Recommended Sequence Number 0::999 The FSEQNO variable in the ADJ form has a special interpretation compared to other forms. For example, ADJ FSEQNO of '1' can be thought of as being '001', FSEQNO of '2' can be thought of as being '002', and FSEQNO of '3' can be thought of as being '003'. The first digit of FSEQNO relates to the corresponding ENF sequence number at that visit and the third digit relates to the specific adjudicator who completed the adjudication form.
Query visday Integer Recommended Number of days from study baseline to date of visit bsfa0b
Query bsfa1 Integer Recommended Was a laboratory specimen collected at this visit? 0;1 1=Yes; 0=No
bsfa2_2401 String 15 Recommended Time of last caloric intake bsfa1_24, bsfa2_24, v10_biobanking_mealtime, v1_biobanking_mealtime, v2_biobanking_mealtime, v4_biobanking_mealtime, v7_biobanking_mealtime
bsfa3_2401 String 15 Recommended Fasting Collection Time bsfa3_24
Query bsfa4 Integer Recommended Pregnancy test requested? 0;1 0=No; 1=Yes bsfa3
Query bsfa5 Integer Recommended Red Cap Vial (Serum) (Frozen) Tubes Collected bsfa4_1
Query bsfa6 Integer Recommended EDTA Tube (Whole Blood) (Refrigerated) Tubes Collected
Query bsfa7 Integer Recommended Urine Container (Frozen) (Not collected at visit 10) Tubes Collected
Query bsfa8 Integer Recommended Extra EDTA Tube (Whole Blood) (Refrigerated) Tubes Collected
Query bsfa9 Integer Recommended Date specimen shipped to Core Lab/biorepository -999::999 bsfa5a, gpfa5
version_form String 121 Recommended Form used/assessment name vers
Query gpfa1 String 3 Recommended Did patient consent to participate in the NIMH Genetics Repository Study? Y;N;N/A Y=Yes; N=No; N/A=Not Available
Query gpfa2 Integer Recommended Date of Genetics consent
Query drdat Integer Recommended Date blood drawn gpfa4
Query gpfa6 Integer Recommended Saturday or Holiday Delivery? 0;1 0=No; 1=Yes
site String 101 Recommended Site Study Site
Query visit String 60 Recommended Visit name visitlabel
Query sample_taken String 50 Recommended Was a sample taken at this interview/during this project time
Query gen001a Integer Recommended Was DNA collected? 0;1 0=No; 1=Yes
Query gen001b Integer Recommended Was RNA collected? 0;1 0=No; 1=Yes
Query gen001c Integer Recommended Was plasma collected? 0;1 0=No; 1=Yes
gen002 Date Recommended Collection Date: (mm/dd/yyyy)
gen003 String 10 Recommended Collection Time: (hh:mm, 24-hour clock; enter 55:55 if unknown; record start time) v10_biobanking_timecollected, v1_biobanking_timecollected, v2_biobanking_timecollected, v4_biobanking_timecollected, v7_biobanking_timecollected
Query biorepository String 100 Recommended Sample provider: i.e. NIMH_Genetics; ATP; Correil
Query gen004 Integer Recommended Was DNA sample shipped to biorepository? 0;1 0=No; 1=Yes
gen004a Date Recommended If "Yes", Date shipped to biorepository
Query gen005 Integer Recommended Was RNA sample shipped to biorepository? 0;1 0=No; 1=Yes
gen005a Date Recommended If "Yes", Date shipped to biorepository
Query gen006 Integer Recommended Was plasma sample shipped to biorepository? 0;1 0=No; 1=Yes
gen006a Date Recommended If Yes, Date shipped to biorepository
comments_misc String 4,000 Recommended Miscellaneous comments on study, interview, methodology relevant to this form data gen007
Query daysrz Integer Recommended days since randomization bsfa1a, bsfa1b
bsfa4_24 String 10 Recommended OGTT: 2-hour Collection Time (24-hour):
drawtime String 20 Recommended time of blood draw bio_proc_02
blood_receive String 10 Recommended Time blood samples received in lab bio_proc_03
urine_collection_time String 10 Recommended Urine Measures: Time of urine collection bio_proc_05
utoxcldt Date Recommended Urine Tox Screen Collection Date Completed
Query labsample40 Float Recommended Fill volume for UNC 8.5 mL ACD-A Yellow Top Tobe: mLs bio_proc_06
labsample41 String 10 Recommended Temperature of centrifuge Specify C or F bio_proc_07
materials1 String 10 Recommended LeukoLock filter: time when RNA later added hh:mm; NA=Not Applicable bio_proc_09
Query materials2 Integer Recommended LeukoLock filter: number of filters -9=NA bio_proc_10
materials3 String 10 Recommended Leukocyte-depleted blood in 2.7ml citrate tubes and 3mL no-additive tube: time put in freezer hh:mm; NA=Not Applicable bio_proc_11
Query materials4 Integer Recommended Leukocyte-depleted blood in 2.7ml citrate tubes and 3mL no-additive tube: number of tubes -9=NA bio_proc_12
materials5 String 10 Recommended Urine in 3mL "no"-additive tubes: time put in freezer hh:mm; NA=Not Applicable bio_proc_13
Query materials6 Integer Recommended Urine in 3mL "no"-additive tubes: number of tubes -9=NA bio_proc_14
materials7 String 10 Recommended Serum cryovials (4mL red top tube): time put in freezer hh:mm; NA=Not Applicable bio_proc_15
Query materials8 Integer Recommended Serum cryovials (4mL red top tube): # of cryovials -9=NA bio_proc_16
Query materials9 Integer Recommended Serum cryovials (4mL red top tube): hemolysis index 0, 20, 50, 100, 200, 500, 1000 bio_proc_17
Query materials10 Integer Recommended Serum cryovials (4mL red top tube): Lipemia 0;1 0=No; 1=Yes bio_proc_18
materials11 String 10 Recommended EDTA plasma cryovials (4ml EDTA tube): time put in freezer hh:mm; NA=Not Applicable bio_proc_19
Query materials12 Integer Recommended EDTA plasma cryovials (4ml EDTA tube): # of cryovials -9=NA bio_proc_20
Query materials13 Integer Recommended EDTA plasma cryovials (4ml EDTA tube): hemolysis index 0, 20, 50, 100, 200, 500, 1000 bio_proc_21
Query materials14 Integer Recommended EDTA plasma cryovials (4ml EDTA tube): Lipemia 0;1 0=No; 1=Yes bio_proc_22
materials15 String 10 Recommended ACD plasma cryovials (8.5ml ACD Tube): time put in freezer hh:mm; NA=Not Applicable bio_proc_23
Query materials16 Integer Recommended ACD plasma cryovials (8.5ml ACD Tube): # of cryovials -9=NA bio_proc_24
Query materials17 Integer Recommended ACD plasma cryovials (8.5ml ACD Tube): hemolysis index 0, 20, 50, 100, 200, 500, 1000 bio_proc_25
Query materials18 Integer Recommended ACD plasma cryovials (8.5ml ACD Tube): Lipemia 0;1 0=No; 1=Yes bio_proc_26
Query materials19 Integer Recommended 2mL EDTA purple top tube: sent to lab 0;1 0=No; 1=Yes bio_proc_27
Query materials20 Integer Recommended 8.5mL ACD yellow top tube drawn 0;1 0=No; 1=Yes bio_proc_28
Query materials21 Integer Recommended 2.5mL RNAGard tube drawn 0;1 0=No; 1=Yes bio_proc_29
Query materials22 Integer Recommended 2.5mL PAXgene RNA tube drawn 0;1 0=No; 1=Yes bio_proc_30
Query materials23 Integer Recommended 8.5mL PAXgene DNA tube drawn 0;1 0=No; 1=Yes bio_proc_31
Query materials24 Integer Recommended 8.5mL ACD tube drawn 0::2 0=No; 1=Yes; 2=NA bio_proc_32
Query elig_inclusion_check Integer Recommended Checks for a pass/fail on Elig for Inclusion 0::3 0=Failed (Ineligible); 1=Passed (Eligible); 2=In screening; 3=NA
Query dataquality Integer Recommended Data quality 0::5 0=No data (cancelled); 1=Data entered but only once, has missing data; 2=Data entered but only once, no missing data; 3=Double entered; 4=Data frozen for cleaning; 5=Data clean/locked
Query bsfa5_1 Integer Recommended Clear cap vial (plasma) frozen tubes collected
Query bsfa8_1 Integer Recommended Sample set complete 0;1 0=No; 1=Yes
Query bsfa1h Integer Recommended Time of last caloric intake: hour
Query bsfa1m Integer Recommended Time of last caloric intake: minutes
Query bsfa2h Integer Recommended Fasting Collection Time: hour
Query bsfa2m Integer Recommended Fasting Collection Time: minutes
Query subjecttype String 20 Recommended Subject Type Control;Prodromal; Enhanced; Non-Enhanced
Query bio_proc_08 Integer Recommended 1;2 1;2 1=Celsius; 2=Farenheit
blooddtm String 25 Recommended Date and Time of Blood Draw bio_proc_01
bio_proc_04 Date Recommended Date urine obtained
bio_proc_34 String 25 Recommended 903 ProteinSaver Card: Time blood applied to card hh:mm; NA=Not Applicable
Query chfast String 2 Recommended Is this a fasting sample? Y;N;U Y=Yes; N=No; U=Unknown v10_biobanking_fasting, v1_biobanking_fasting, v2_biobanking_fasting, v4_biobanking_fasting, v7_biobanking_fasting
lstmldt Date Recommended Date of Last Meal v10_biobanking_mealdate, v1_biobanking_mealdate, v2_biobanking_mealdate, v4_biobanking_mealdate, v7_biobanking_mealdate
Query v1_biobanking_exercise Integer Recommended physical exercise in last 48hrs (yes/no) 0;1 0= no; 1= yes v10_biobanking_exercise, v2_biobanking_exercise, v4_biobanking_exercise, v7_biobanking_exercise
v1_biobanking_timeprocessed String 15 Recommended sample time processed (24hr clock) hh:mm v10_biobanking_timeprocessed, v2_biobanking_timeprocessed, v4_biobanking_timeprocessed, v7_biobanking_timeprocessed
v1_biobanking_timefrozen String 15 Recommended sample time frozen (24hr clock) hh:mm v10_biobanking_timefrozen, v2_biobanking_timefrozen, v4_biobanking_timefrozen, v7_biobanking_timefrozen
Query form_completed Integer Recommended Was the form completed? 1::4 1=Yes; 2=No; 3=Unverified; 4 = N/A-Not in age range
nimh_id String 250 Recommended nimh id
patient_id_biorepository String 100 Recommended Biorepository Patient ID
Query week Float Recommended Week in level/study 99=week 10-week 14
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.