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Frequently Asked Questions


NDA Help Center

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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Hormone Measurment Form



Download Definition as
Download Submission Template as
Element NameData TypeSizeRequiredDescriptionValue RangeNotesAliases
subjectkeyGUIDRequiredThe NDAR Global Unique Identifier (GUID) for research subjectNDAR*
src_subject_idString20RequiredSubject ID how it's defined in lab/project
interview_dateDateRequiredDate on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYYRequired field
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.
sexString20RequiredSex of the subjectM;FM = Male; F = Femalegender
sample_descriptionString3,500RequiredSample description: tissue type, i.e. blood, saliva, brain etc.whole blood; saliva; brain; urine; serum; plasma; CSF; IPS; Fibroblast; Neuronal Progenitor; skin biopsy; temporal cortex; lymphoblastoid cell line; unknown; semen; frontal cortex; parietal cortex; basal ganglia; Placenta; hair; occipital visual cortex; cerebellum; spleen; stool; muscle; kidney; liver; heart
sample_id_originalString100RecommendedOriginal, user-defined Sample IDsampleid
salimetricsidString25RecommendedID assigned by Salimetrics
batchnumString15RecommendedBatch numberassay_batch
dhea_rep1FloatRecommendeddhea repeated measurements 1hormone_scr_dhea_rep1
dhea_rep2FloatRecommendeddhea repeated measurements 2hormone_scr_dhea_rep2
saliva_dhea_collection1_meanFloatRecommendedSaliva Measures: DHEA level mean value for the first saliva collection (pg/ml)dhea_mean_pgml, hormone_scr_dhea_mean
estradiol_rep1FloatRecommendedestradiol repeated measurements 1
estradiol_rep2FloatRecommendedestradiol repeated measurements 2
saliva_estradiol_collect1_meanFloatRecommendedSaliva Measures: Estradiol level mean value for the first saliva collection (pg/ml)estradiol_mean_pgml
dheas_rep1FloatRecommendeddheas repeated measurements 1
dheas_rep2FloatRecommendeddheas repeated measurements 2
dheas_mean_pgmlFloatRecommendeddheas Mean (pg/mL)
testosterone_rep1FloatRecommendedtestosterone repeated measurements 1
testosterone_rep2FloatRecommendedtestosterone repeated measurements 2
saliva_testosterone_c1_meanFloatRecommendedSaliva Measures: Testosterone level mean value for the first saliva collection (pg/ml)testosterone_mean_pgml
hormone_scr_dhea_rep1_llString30RecommendedSalimetrics hormone test DHEA below lower limit of sensitivity (repetition 1)
hormone_scr_dhea_rep1_qnsString30RecommendedSalimetrics hormone test DHEA quality not sufficient (repetition 1)
hormone_scr_dhea_rep1_ndString30RecommendedSalimetrics hormone test DHEA none detected (repetition 1)
hormone_scr_dhea_rep2_llString30RecommendedSalimetrics hormone test DHEA below lower limit of sensitivity (repetition 2)
hormone_scr_dhea_rep2_qnsString30RecommendedSalimetrics hormone test DHEA quality not sufficient (repetition 2)
hormone_scr_dhea_rep2_ndString30RecommendedSalimetrics hormone test DHEA none detected (repetition 2)
hormone_scr_hse_meanFloatRecommendedSalimetrics hormone test estradiol (HSE) mean of measures (pg/mL)
hormone_scr_hse_rep1FloatRecommendedSalimetrics hormone test estradiol (HSE) repetition 1 (pg/mL)
hormone_scr_hse_rep1_llString30RecommendedSalimetrics hormone test estradiol (HSE) below lower limit of sensitivity (repetition 1)
hormone_scr_hse_rep1_qnsString30RecommendedSalimetrics hormone test estradiol (HSE) quality not sufficient (repetition 1)
hormone_scr_hse_rep1_ndString30RecommendedSalimetrics hormone test estradiol (HSE) none detected (repetition 1)
hormone_scr_hse_rep2FloatRecommendedSalimetrics hormone test estradiol (HSE) repetition 2 (pg/mL)
hormone_scr_hse_rep2_llString30RecommendedSalimetrics hormone test estradiol (HSE) below lower limit of sensitivity (repetition 2)
hormone_scr_hse_rep2_qnsString30RecommendedSalimetrics hormone test estradiol (HSE) quality not sufficient (repetition 2)
hormone_scr_hse_rep2_ndString30RecommendedSalimetrics hormone test estradiol (HSE) none detected (repetition 2)
hormone_scr_ert_meanFloatRecommendedSalimetrics hormone test testosterone (ERT) mean of measures (pg/mL)
hormone_scr_ert_rep1FloatRecommendedSalimetrics hormone test testosterone (ERT) repetition 1 (pg/mL)
hormone_scr_ert_rep1_llString30RecommendedSalimetrics hormone test testosterone (ERT) below lower limit of sensitivity (repetition 1)
hormone_scr_ert_rep1_qnsString30RecommendedSalimetrics hormone test testosterone (ERT) quality not sufficient (repetition 1)
hormone_scr_ert_rep1_ndString30RecommendedSalimetrics hormone test testosterone (ERT) none detected (repetition 1)
hormone_scr_ert_rep2FloatRecommendedSalimetrics hormone test testosterone (ERT) repetition 2 (pg/mL)
hormone_scr_ert_rep2_llString30RecommendedSalimetrics hormone test testosterone (ERT) below lower limit of sensitivity (repetition 2)
hormone_scr_ert_rep2_qnsString30RecommendedSalimetrics hormone test testosterone (ERT) quality not sufficient (repetition 2)
hormone_scr_ert_rep2_ndString30RecommendedSalimetrics hormone test Salimetrics hormone test testosterone (ERT) quality not sufficient (repetition 2) none detected (repetition 2)
visitString50RecommendedVisit nameeventname
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: hormone01 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.