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This is a U.S. Government computer system, which may be accessed and used only for authorized Government business by authorized personnel. Unauthorized access or use of this computer system may subject violators to criminal, civil, and/or administrative action. All information on this computer system may be intercepted, recorded, read, copied, and disclosed by and to authorized personnel for official purposes, including criminal investigations. Such information includes sensitive data encrypted to comply with confidentiality and privacy requirements. Access or use of this computer system by any person, whether authorized or unauthorized, constitutes consent to these terms. There is no right of privacy in this system.

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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).

When combining other filters with the GUID filter, please note the GUID filter should be added last. Otherwise, preselected data may be lost. For example, a predefined filter from Featured Datasets may select a subset of data available for a subject. When combined with a GUID filter for the same subject, the filter cart will contain all data available from that subject, data structure, and dataset; this may be more data than was selected in the predefined filter for that subject. Again, you should add the GUID Filter as the last filter to your cart. This ensures 'AND' logic between filters and will limit results to the subjects, data structures, and datasets already included in your filter cart.

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 filter criteria by replacing all filters in your Filter Cart with a single Query by GUID filter for all subjects selected by those filters.

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  • 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

  • What is a Filter Cart?
    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.
  • What do I do after filters are added to the Filter Cart?
    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.
  • Are there limitations on the amount of data a user can download?

    NDA limits the rate at which individual users can transfer data out of Amazon Web Services (AWS) S3 Object storage to non-AWS internet addresses. All users have a download limit of 20 Terabytes. This limit applies to the volume of data an individual user can transfer within a 30-day window. Only downloads to non-AWS internet addresses will be counted against the limit.

  • How does Filter Cart Boolean logic work?

    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.

    When combining other filters with the GUID filter, please note the GUID filter should be added last. Otherwise, preselected data may be lost. For example, a predefined filter from Featured Datasets may select a subset of data available for a subject. When combined with a GUID filter for the same subject, the filter cart will contain all data available from that subject, data structure, and dataset; this may be more data than was selected in the predefined filter for that subject. Again, you should add the GUID Filter as the last filter to your cart. This ensures 'AND' logic between filters and will limit results to the subjects, data structures, and datasets already included in your filter cart.

Glossary

  • Workspace
    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.
  • Filter Cart
    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 adds data using an AND condition. The opportunity to further refine data to determine what will be downloaded or sent to a miNDAR is available on the Data Packaging Page, the next step after the Filter Cart. Subsequent access to data is restricted by User Permission or Privilege; however Filter Cart use is not.
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Child Virtual Reality Simulation Sickness

61 Shared Subjects

This measure contains questions asked in child friendly language immediately following the use of virtual reality equipment to quantify physical symptoms such as general discomfort, dizziness, and nausea. This aims to assess potential virtual reality sickness.
Clinical Assessments
Phys Characteristics; Side Effects
03/10/2021
vrss01
03/24/2021
View Change History
01
Definition
Submission Template
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*
src_subject_id String 20 Required Subject ID how it's defined in lab/project
interview_date Date Required Date on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYY
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.
sex String 20 Required Sex of subject at birth M;F; O; NR M = Male; F = Female; O=Other; NR = Not reported
respondent String 20 Recommended Respondent Mother;Father;Parent;Guardian;Teacher;Child;Self;Caregiver;Partner;Other
scenario_order Integer Recommended VR scenario order 0;1;999 0 = 1-2-3; 1 = 3-2-1; 999 = not recorded
scenario_num String 20 Recommended VR scenario number P; 1a; 1b; 2a; 2b; 3a; 3b; NR P = Practice; 1a; 1b; 2a; 2b; 3a; 3b; NR = not recorded
vrss_q1 Integer Recommended Response to Virtual Reality - Feel bad overall (Nausea) 1::4;999 1 = None; 2 = A little; 3 = A lot; 4 = Severe; 999 = missing
vrss_q2 Integer Recommended Response to Virtual Reality - Tired (Oculormotor) 1::4;999 1 = None; 2 = A little; 3 = A lot; 4 = Severe; 999 = missing
vrss_q3 Integer Recommended Response to Virtual Reality - Headache (Oculormotor) 1::4;999 1 = None; 2 = A little; 3 = A lot; 4 = Severe; 999 = missing
vrss_q4 Integer Recommended Response to Virtual Reality - Eyes hurt (Oculormotor) 1::4;999 1 = None; 2 = A little; 3 = A lot; 4 = Severe; 999 = missing
vrss_q5 Integer Recommended Response to Virtual Reality - Trouble seeing (Nausea) 1::4;999 1 = None; 2 = A little; 3 = A lot; 4 = Severe; 999 = missing
vrss_q6 Integer Recommended Response to Virtual Reality - Increased saliva (Nausea) 1::4;999 1 = None; 2 = A little; 3 = A lot; 4 = Severe; 999 = missing
vrss_q7 Integer Recommended Response to Virtual Reality - Sweating (Nausea) 1::4;999 1 = None; 2 = A little; 3 = A lot; 4 = Severe; 999 = missing
vrss_q8 Integer Recommended Response to Virtual Reality - Sick to stomach (Oculormotor) 1::4;999 1 = None; 2 = A little; 3 = A lot; 4 = Severe; 999 = missing
vrss_q9 Integer Recommended Response to Virtual Reality - Trouble concentrating (Oculormotor) 1::4;999 1 = None; 2 = A little; 3 = A lot; 4 = Severe; 999 = missing
vrss_q10 Integer Recommended Response to Virtual Reality - Things look blurry (Oculormotor) 1::4;999 1 = None; 2 = A little; 3 = A lot; 4 = Severe; 999 = missing
vrss_q11 Integer Recommended Response to Virtual Reality - Dizzy with eyes open (Nausea) 1::4;999 1 = None; 2 = A little; 3 = A lot; 4 = Severe; 999 = missing
vrss_q12 Integer Recommended Response to Virtual Reality - Dizzy with eyes closed (Nausea) 1::4;999 1 = None; 2 = A little; 3 = A lot; 4 = Severe; 999 = missing
usability_q1 Integer Recommended The headset is comfortable. 0::100;999 0 = Strongly disagree ; 100 = Strongly agree; 999 = missing
usability_q2 Integer Recommended The controls are easy to use. 0::100;999 0 = Strongly disagree ; 100 = Strongly agree; 999 = missing
usability_q3 Integer Recommended The headset is too heavy. 0::100;999 0 = Strongly disagree ; 100 = Strongly agree; 999 = missing
usability_q4 Integer Recommended I like using the virtual reality headset. 0::100;999 0 = Strongly disagree ; 100 = Strongly agree; 999 = missing
usability_q5 Integer Recommended It is easy to move around in the game. 0::100;999 0 = Strongly disagree ; 100 = Strongly agree; 999 = missing
nausea_score Float Recommended VR Simulation Sickness Nausea Mean Score 1::4;77;999 77 = incomplete; 999 = missing
oculor_score Float Recommended VR Simulation Sickness Oculormotor Mean Score 1::4;77;999 77 = incomplete; 999 = missing
vrss_total_score Float Recommended VR Simulation Sickness Overall Mean Score 1::4;77;999 77 = incomplete; 999 = missing
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.