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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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Data Structures with shared data
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Endicott Work Productivity Scale

807 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*
src_subject_id String 20 Required Subject ID how it's defined in lab/project id
interview_date Date Required Date on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYY Required field v10_ewps_date, v2_ewps_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. v10_ewps_age, v2_ewps_age
sex String 20 Required Sex of the subject M;F M = Male; F = Female gender
Query visday Integer Recommended Number of days from study baseline to date of visit date
Query phase Integer Recommended Phase 9 =follow up
Query week Float Recommended Week in level/study 99=week 10-week 14
Query site String 101 Recommended Site Study Site siteid
Query ewps_1 Integer Recommended Do you receive pay or other money for any type of work? 0;1 0 = No;1 = Yes pay, v10_ewps_pay_otherwork, v2_ewps_pay_otherwork
Query ewps_2 Integer Recommended Do you do volunteer work? 0;1 0 = No;1 = Yes v10_ewps_volunteer, v2_ewps_volunteer, volunter
Query ewps_3 Integer Recommended If you do not receive money for your work and do not do volunteer work, please indicate why you do not; 1::4 1 = I am physically ill;2 = I am too upset, depressed, or nervous;3 = I can't find work;4 = Other (please specify) notwork, v10_ewps_no_workvolunteer_why, v2_ewps_no_workvolunteer_why
Query ewps_4 Integer Recommended I am self-employed. 0;1 0 = No;1 = Yes selfemp, v10_ewps_selfemploy, v2_ewps_selfemploy
Query ewps_5 Integer Recommended I work for someone else 0;1 0 = No;1 = Yes v10_ewps_workforsomeone, v2_ewps_workforsomeone, workfor
Query ewps_6 Integer Recommended I have a boss/supervisor. 0;1 0 = No;1 = Yes boss, v10_ewps_boss, v2_ewps_boss
Query ewps_7 Integer Recommended I have co-workers with whom I must work. 0;1 0 = No;1 = Yes coworker, v10_ewps_coworkers, v2_ewps_coworkers
Query ewps_8 Integer Recommended I supervise others at work 0;1 0 = No;1 = Yes supervis, v10_ewps_supervise, v2_ewps_supervise
Query ewps_9 Integer Recommended I deal with clients/customers/vendors 0;1 0 = No;1 = Yes clients, v10_ewps_clients, v2_ewps_clients
Query ewps_10 Integer Recommended How many hours do you usually work or would you usually be expected to work? v10_ewps_hoursweek_expected, v2_ewps_hoursweek_expected, workhrs
Query ewps_11 Integer Recommended How many hours did you work last week? If you missed time at work last week, please note all reasons why v10_ewps_hours_lastweek, v2_ewps_hours_lastweek, workweek
Query ewps_12 Integer Recommended I had a day off (Holiday/vacation) 0::2 0=Unchecked;1=Checked; 2 = N/A dayoff, v2_ewps_missedwork_dayoff
Query ewps_13 Integer Recommended I was physically ill 0::2 0=Unchecked;1=Checked; 2 = N/A physill, v2_ewps_missedwork_physically_ill
Query ewps_14 Integer Recommended Too upset, depressed, or nervous 0::2 0=Unchecked;1=Checked; 2 = N/A depress, v2_ewps_missedwork_upset
Query ewps_15 Integer Recommended Missed work. Other (please specify) 0;1 0=Unchecked;1=Checked other, v10_ewps_missedwork_why_other, v2_ewps_missedwork_why_other
Query ewps_16 Integer Recommended Arrive at work late or leave work early? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always arrivelt, v10_ewps_pastweek_1earlylate, v2_ewps_pastweek_1earlylate
Query ewps_17 Integer Recommended Take longer lunch hours or coffee breaks? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always lngbreak, v10_ewps_pastweek_2longbreak, v2_ewps_pastweek_2longbreak
Query ewps_18 Integer Recommended Just do no work at times when you would be expected to be working? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always nowork, v10_ewps_pastweek_3nowork, v2_ewps_pastweek_3nowork
Query ewps_19 Integer Recommended Find yourself daydreaming, worrying or staring into space when you should be working? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always daydream, v10_ewps_pastweek_4daydream, v2_ewps_pastweek_4daydream
Query ewps_20 Integer Recommended Have to do a job over because you made a mistake or your supervisor told you to do a job over? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always jobover, v10_ewps_pastweek_5repeatjob, v2_ewps_pastweek_5repeatjob
Query ewps_21 Integer Recommended Waste time looking for misplaced supplies, materials, papers, phone numbers, etc.? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always v10_ewps_pastweek_6wastetime, v2_ewps_pastweek_6wastetime, wastetm
Query ewps_22 Integer Recommended Find you have forgotten to call someone? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always call, v10_ewps_pastweek_7forgetcall, v2_ewps_pastweek_7forgetcall
Query ewps_23 Integer Recommended Find you have forgotten to respond to a request? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always respond, v10_ewps_pastweek_8forgetresponse, v2_ewps_pastweek_8forgetresponse
Query ewps_24 Integer Recommended Become annoyed with or irritated by co-workers boss/supervisor, clients/customers/vendors or others? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always annoyed, v10_ewps_pastweek_9annoyed, v2_ewps_pastweek_9annoyed
Query ewps_25 Integer Recommended Become impatient with others at work? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always impatient, v10_ewps_pastweek_10impatient, v2_ewps_pastweek_10impatient
Query ewps_26 Integer Recommended Avoid attending meetings? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always avmeetin, v10_ewps_pastweek_11avoidmeeting, v2_ewps_pastweek_11avoidmeeting
Query ewps_27 Integer Recommended Avoid interaction with co-workers, clients, vendors or supervisors 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always interact, v10_ewps_pastweek_12avoidothers, v2_ewps_pastweek_12avoidothers
Query ewps_28 Integer Recommended Have a co-worker redo something you had completed? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always redowork, v10_ewps_pastweek_13coworkerredo, v2_ewps_pastweek_13coworkerredo
Query ewps_29 Integer Recommended Find it difficult to concentrate on the task at hand? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always concentr, v10_ewps_pastweek_14difficultconcentrate, v2_ewps_pastweek_14difficultconcentrate
Query ewps_30 Integer Recommended Fall asleep unexpectedly or become very sleepy while at work? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always fallaslp, v10_ewps_pastweek_15asleep, v2_ewps_pastweek_15asleep
Query ewps_31 Integer Recommended Become restless while at work? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always restless, v10_ewps_pastweek_16restless, v2_ewps_pastweek_16restless
Query ewps_32 Integer Recommended Notice that your productivity for the time spent is lower than expected? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always lowprod, v10_ewps_pastweek_17lowproductivity, v2_ewps_pastweek_17lowproductivity
Query ewps_33 Integer Recommended Notice that your efficiency for the time spent is lower than expected? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always loweffic, v10_ewps_pastweek_18lowefficiency, v2_ewps_pastweek_18lowefficiency
Query ewps_34 Integer Recommended Lose interest or become bored with your work? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always loseint, v10_ewps_pastweek_19bored, v2_ewps_pastweek_19bored
Query ewps_35 Integer Recommended Work more slowly or take longer to complete tasks than expected? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always v10_ewps_pastweek_20slow, v2_ewps_pastweek_20slow, workslow
Query ewps_36 Integer Recommended Have your boss/co-workers remind you to do things? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always remind, v10_ewps_pastweek_21reminders, v2_ewps_pastweek_21reminders
Query ewps_37 Integer Recommended Not want to return phone calls or putt off returning calls? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always putoff, v10_ewps_pastweek_22notreturncall, v2_ewps_pastweek_22notreturncall
Query ewps_38 Integer Recommended Have trouble organizing work or setting priorities? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always setprior, v10_ewps_pastweek_23organizationproblems, v2_ewps_pastweek_23organizationproblems
Query ewps_39 Integer Recommended Fail to finish assigned tasks? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always failfnsh, v10_ewps_pastweek_24failtofinish, v2_ewps_pastweek_24failtofinish
Query ewps_40 Integer Recommended Feel too exhausted to do your work? 0::4 0 = Never;1 = Rarely;2 = Sometimes;3 = Often;4 = Almost Always exhaustd, v10_ewps_pastweek_25exhausted, v2_ewps_pastweek_25exhausted
Query ewps_41 Integer Recommended Skip form 0;1 0=No; 1=Yes works
Query ewpstot Integer Recommended EWPS total score v2_ewps_total
demo_edu_other String 100 Recommended Education other: specify v10_ewps_education, v2_ewps_education
occup_sp String 100 Recommended Occupation other. Please describe: v10_ewps_occupation, v2_ewps_occupation
ewps_3a String 20 Recommended Do not receive money or volunteer, why not - other (describe) v10_ewps_no_workvolunteer_why_other, v2_ewps_no_workvolunteer_why_other
ewps_13a String 20 Recommended If you missed work, why - ill (describe) v10_ewps_missedwork_why_ill_describe, v2_ewps_missedwork_why_ill_describe
version_form String 100 Recommended Form used/assessment name
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.