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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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Gynecological Questionnaire

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Clinical Assessments
Phys Exam
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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* pseudo_guids
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 interview_dt_t1, interview_dt_t2, interview_dt_t3, interview_dt_t4
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. age_t1_mos, age_t2_mos, age_t3_mos, age_t4_mos
sex String 20 Required Sex of the subject
M = Male; F = Female gender, gender_t1, gender_t2, gender_t3, gender_t4
gyn1a_t4 Integer Recommended Do you have an OB-GYN doctor? 0;1 0 = No; 1= Yes
gyn1b_t4 Integer Recommended If yes, is your OB-GYN doctor at the VA? 0;1 0 = No; 1= Yes
gyn1c_t4 Integer Recommended Have you seen your OB-GYN in the past 3 years? 0;1 0 = No; 1= Yes
aut_prehuse_pelvic Integer Recommended Within the past 3 years, have you had a pelvic exam and/or pap smear? 0::3 0 = No;1 = Yes; 2= NA; 3= Don’t Know gyn1d_t4
gyn2a_t4 Integer Recommended Do you experience emotional distress during pelvic exams? 1::5 1= Not at all; 2= A little; 3= Moderately; 4= Quite a bit; 5= Extremely
gyn2b_t4 Integer Recommended Do you experience physical discomfort during pelvic exams? 1::5 1= Not at all; 2= A little; 3= Moderately; 4= Quite a bit; 5= Extremely
gyn2c_t4 Integer Recommended Are you afraid of your OB-GYN doctor? 1::5 1= Not at all; 2= A little; 3= Moderately; 4= Quite a bit; 5= Extremely
gyn2d_t4 Integer Recommended How much does it matter to you if the OB-GYN is male or female? 1::5 1= Not at all; 2= A little; 3= Moderately; 4= Quite a bit; 5= Extremely
gyn3a_t4 Integer Recommended In the past 3 years, have you used birth control or hormones? 0;1 0 = No; 1= Yes
gyn3b_t4 Integer Recommended If you have used birth control or hormones, what kind? (e.g., condoms, pills, shot, arm implant, IUD, patch, diaphragm)? 0;1 0 = No; 1= Yes
gyn3c_t4 Integer Recommended Purpose of birth control/hormones: prevent pregnancy 0;1 0 = No; 1= Yes
gyn3d_t4 Integer Recommended Purpose of birth control/hormones: prevent getting a sexually transmitted disease 0;1 0 = No; 1= Yes
gyn3e_t4 Integer Recommended Purpose of birth control/hormones: for other health reasons (abnormal bleeding, menopause) 0;1 0 = No; 1= Yes
mchq_7 Integer Recommended Abnormal pap smear?
1;2; 888; 999
1=Yes; 2=No; 888=N/A; 999=missing data gyn4_t4
gyn5a_t4 Integer Recommended Have you had a hysterectomy (surgical removal of your uterus)? 0;1 0 = No; 1= Yes
gyn5b_t4 Integer Recommended Reason for hysterectomy: Vaginal bleeding (i.e heavy menses, irregular bleeding, abnormal bleeding) 0;1 0 = No; 1= Yes
gyn5c_t4 Integer Recommended Reason for hysterectomy: Pain (abdominal or pelvic pain) 0;1 0 = No; 1= Yes
gyn5d_t4 Integer Recommended Reason for hysterectomy: Prolapse (bladder or uterus ''falling out'' of your vagina) 0;1 0 = No; 1= Yes
gyn5e_t4 Integer Recommended Reason for hysterectomy: Cancer (uterine, ovarian, cervical or a family history of cancer) 0;1 0 = No; 1= Yes
gyn5f_t4 Integer Recommended Reason for hysterectomy: Uterine fibroids 0;1 0 = No; 1= Yes
gyn5g_t4 Integer Recommended Reason for hysterectomy: Ovarian cysts 0;1 0 = No; 1= Yes
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.