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Filter Cart

The Filter Cart provides a way to query and access data for which you may be interested.  There are multiple places to go query and Add to Filter Cart (Sometimes called Download).  

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 add subjects, sometimes it may take a few minutes to populate.  You can continue to do other things 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 available for the subjects selected 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 available.  However, if you want to see all of the clinical and phenotype, then select, "Find All Subject Data" to see all the data avaialble for those subjects.  

when a secord or third filter is applied, an AND condition is used to determine the subjects that are exist in all filters.  If the subject does not appear in any filter, that subjects data will be excluded from your filter cart. Given the sparcity of data in the NDA, it is possible for no subjects to appear across filters.  If that happens, clear your filter cart, and start over.  

The NDA is looking to enhance query/filtering.  Until additional tools become available, it is best to package more data than you need and then package and download the data and use other tools to further restrict and analyze the data.  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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NDAR provides a single access to de-identified autism research data. For permission to download data, you will need an NDAR account with approved access to NDAR or a connected repository (AGRE, IAN, or the ATP). For NDAR 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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The filters you have selected from various query interfaces will be stored here, in the 'Filter Cart'. The database will be queried using filters added to your 'Filter Cart', when multiple filters are defined, each will be executed using 'AND' logic, so with each filter that is applied the result set gets smaller.

From the 'Filter Cart' you can inspect each of the filters that have been defined, and you also have the option to remove filters. The 'Filter Cart' itself will display the number of filters applied along with the number of subjects that are identified by the combination of those filters. For example a GUID filter with two subjects, followed by a GUID filter for just one of those subjects would return only data for the subject that is in both GUID filters.

If you have a question about the filter cart, or underlying filters please contact the help desk at The NDA Help Desk

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Hamilton Rating Scale for Depression



Download Definition as
Download Submission Template as
Element NameData TypeSizeRequiredDescriptionValue RangeNotesAliases
subjectkeyGUIDRequiredThe NDAR Global Unique Identifier (GUID) for research subjectNDAR*guid, nimhid, z1
src_subject_idString20RequiredSubject ID how it's defined in lab/projectcatieid, id, participant_id, ptid, randid, record_id, subject_id, subjectid, subjid, z2
interview_dateDateRequiredDate on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYYRequired fieldbprs_doa, hamddt, intvdate, testdate, v10_hamd_age, v10_hamd_date, v1_hamd_date, v2_hamd_date, visit_date, z3
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.age, intvage, v1_hamd_age, v2_hamd_age, z4
genderString20RequiredSex of the subjectM;FM = Male; F = Femalez5
crcidString40RecommendedCRC ID/ROA ID
dateDateRecommendedOpen Label Baseline dateComplete only if starting Open Label Phase. OL Baseline contact is visit where participant is given active drug - included in random data set.
updateIntegerRecommendedUpdated form0;11=Updated
lang_visitIntegerRecommendedLanguage during visit0;11=Spanish; 0=Englishspanish
hsoinIntegerRecommendedHRS Initial insomnia0::2;-90=Absent: No difficulty falling asleep; 1=Mild:Complains of occasional difficulty falling asleep — i.e., more than 1/2 hour; 2=Severe: Complains of nightly difficulty falling asleep; -9 = Not answeredham4, ham_insom_early, hamd17_early_insomnia, hamd4, hamd_06, hamilton4, hrsd4, insom_er, insom_hrsd, insomnia, insomniaearly, v10_hamd_6_insomnia_early, v1_hamd_6_insomnia_early, v2_hamd_6_insomnia_early
hmninIntegerRecommendedHRS Middle insomnia0::2;-90=Absent: No difficulty; 1=Mild: Patient complains of being restless and disturbed during the night; 2=Severe: Waking during the night—any getting out of bed rates 2 (except for purposes of voiding); -9 = Not answeredham5, ham_insom_mid, hamd17_middle_insomnia, hamd5, hamd_07, hamilton5, hrsd5, insom_md, insomniamiddle, middle, midinsom_hrsd, v10_hamd_7_insomnia_middle, v1_hamd_7_insomnia_middle, v2_hamd_7_insomnia_middle
heminIntegerRecommendedHRS Late insomnia0::2;-90=Absent: No difficulty; 1=Mild: Waking in early hours of the morning but goes back to sleep; 2=Severe: Unable to fall asleep again if he gets out of bed; -9 = Not answereddelayed, delayinsom_hrsd, ham6, ham_insom_late, hamd17_late_insomnia, hamd6, hamd_08, hamilton6, hrsd6, insom_lt, insomnialate, v10_hamd_8_insomnia_late, v1_hamd_8_insomnia_late, v2_hamd_8_insomnia_late
hmdsdIntegerRecommendedHRS Depressed mood0::4;-90=Absent; 1= Doubtful or trivial:These feeling states indicated only on questioning; 2=Mild:These feeling states spontaneously reported verbally; 3=Moderate:Communicates feeling states non-verbally—i.e., through facial expression, posture, voice, and tendency to weep; 4=Severe: Patient reports VIRTUALLY ONLY these feeling states in his spontaneous verbal and non-verbal communication; -9 = Not answereddepmood, depress, depress_hrsd, depressed, ham1, ham_depressed, hamd1, hamd17_depmood, hamd6_1, hamd_01, hamilton1, hrsd1, v10_hamd_1_depressedmood, v1_hamd_1_depressedmood, v2_hamd_1_depressedmood
hpanxIntegerRecommendedHRS Psychic anxiety0::4;-90=Absent: No difficulty; 1=Doubtful or trivial: Subjective tension and irritability; 2=Mild: Worrying about minor matters; 3=Moderate: Apprehensive attitude apparent in face or speech; 4=Severe: Fears expressed without questioning; -9 = Not answeredanxietypsychic, ham10, ham_anx_psy, hamd10, hamd17_anxpsychic, hamd6_5, hamd_24, hamilton10, hrsd10, psychic, psychicanx_hrsd, v10_hamd_12_anxiety_psychic, v1_hamd_12_anxiety_psychic, v2_hamd_12_anxiety_psychic
hinsgIntegerRecommendedHRS Loss of insight0::2;-90=Acknowledges being depressed and ill; 1=Acknowledges illness but attributes cause to bad food, climate, over work, virus, need for rest, etc.; 2=Denies being ill at all; -9 = Not answeredham17, ham_insight_loss, hamd16, hamd17_insight, hamd_28, hamilton17, hrsd17, insight, lossinsight_hrsd, v10_hamd_15_insight, v1_hamd_15_insight, v2_hamd_15_insight
happtIntegerRecommendedHRS Appetite0::2;-90=Normal appetite; 1=Mild reduction; 2=Moderate to severe reduction; -9 = Not answeredappetite_hrsd, ham12, ham_som_gastro, hamd17_somsxs_gastro, v10_hamd_4_somaticgastro, v1_hamd_4_somaticgastro, v2_hamd_4_somaticgastro
hwlIntegerRecommendedHRS Weight loss0::2;-90=No weight loss; 1=Probably weight loss associated with present illness; 2=Definite (according to patient) weight loss; -9 = Not answeredham16, ham_weight_loss, hamd17_weight, hamd_14, hamilton16b, hrsd16a, weight, wghtloss, wghtlss_hrsd, wtloss
hsanxIntegerRecommendedHRS Somatic anxiety0::4;-90 = Absent: No somatic anxiety; 1 =Doubtful or trivial: Minor symptoms elicited only by direct questioning; 2= Mild: Spontaneously describes symptoms, which are not marked or incapacitating; 3=Moderate: Greater number and frequency of symptoms; accompanied by subjective distress and serve to impair normal functioning; 4 = Severe: Symptoms are numerous, persistent and incapacitating much of the time; -9 = Not answeredanxietysomatic, ham11, ham_anx_som, hamd11, hamd17_anxiety_somatic, hamd_26, hamilton11, hrsd11, somatic, somaticanx_hrsd, v10_hamd_13_anxiety_somatic, v1_hamd_13_anxiety_somatic, v2_hamd_13_anxiety_somatic
hhypcIntegerRecommendedHRS Hypochondriasis0::4;-90=Absent; 1=Mild; 2=Moderate; 3=Moderately severe; 4=Severe; -9 = Not answeredham15, ham_hypochon, hamd15, hamd17_hypochondriasis, hamd_27, hamilton15, hrsd15, hypochon_hrsd, hypochondriasis, hypocodr, v10_hamd_14_hypochond, v1_hamd_14_hypochond, v2_hamd_14_hypochond
hvwsfIntegerRecommendedHRS Guilt feelings and delusions0::4;-90=Absent; 1=Doubtful or trivial: Self reproach, feels he has let people down; 2=Mild:Ideas of guilt or rumination over past errors or sinful deeds; 3=Moderate: Present illness is a punishment. Delusions of guilt; 4=Severe: Hears accusatory or denunciatory voices and/or experiences threatening visual hallucinations; -9 = Not answeredguilt, guilt_hrsd, ham2, ham_guilt, hamd17_guilt, hamd2, hamd6_2, hamd_21, hamilton2, hrsd2, v10_hamd_10_guilt, v1_hamd_10_guilt, v2_hamd_10_guilt
hsuicIntegerRecommendedHRS Suicide0::4;-90=Absent; 1=Feels life is empty; 2=Wishes for death; 3=Active suicidal thoughts; 4=Serious suicide attempt; -9 = Not answeredham3, ham_suicide, hamd17_suicide, hamd3, hamd_23, hamilton3, hrsd3, suicide, suicide_hrsd, v10_hamd_11_suicide, v1_hamd_11_suicide, v2_hamd_11_suicide
hintrIntegerRecommendedHRS Work and interests0::4;-90=Absent: No difficulty; 1=Doubtful or trivial: Thoughts and feelings of incapacity , fatigue or weakness related to activities; work or hobbies; 2=Mild: Loss of interest in activity; hobbies or work—either directly reported by patient, or indirect in listlessness, indecision and vacillation (feels he has to push self to work or activities); 3=Moderate: Decrease in actual time spent in activities or decrease in productivity; 4=Severe: Stopped working because of present illness; -9 = Not answeredactivities, apathy_hrsd, ham7, ham_work, hamd17_activities, hamd6_3, hamd7, hamd_03, hamilton7, hrsd7, v10_hamd_2_workandactivities, v1_hamd_2_workandactivities, v2_hamd_2_workandactivities, work1, workact
hengyIntegerRecommendedHRS Somatic energy0::2;-90 = Absent: No change in energy; 1 = Mild: Infrequent, feelings noted but not marked; 2 =Obvious and severe: Tires very quickly, exhausted much of the time, spontaneously mentions symptoms ; -9 = Not answeredham13, ham_som_gen, hamd17_somsxs_gen, somaenergy_hrsd
hslowIntegerRecommendedHRS Retardation. Psychomotor (Slowness of thought and speech; impair ed ability to concentrate; decr eased motor activity).0::4;-90=Absent: Normal speech and thought; 1=Mild: Slight retardation at interview; 2=Moderate: Obvious retardation at interview; 3=Severe: Interview difficult; 4=Extreme: Complete stupor; -9 = Not answeredham8, ham_psychomotor, hamd17_retardation, hamd6_4, hamd8, hamd_30, hamilton8, hrsd8, psychoretard_hrsd, retard, retardation, v10_hamd_16_retardation, v1_hamd_16_retardation, v2_hamd_16_retardation
hagitIntegerRecommendedHRS Agitation0::5; -90=Absent: None; 1=Mild: Fidgetiness; 2=Moderate: Playing with hands, hair, etc.;3=Severe: Moving about, can't sit still; 4=Extreme: Hand wringing, nail biting, hair-pulling, biting of lips; 5=Definite; -9=NAagitate, agitation, agitation_hrsd, ham9, ham_agitation, hamd17_agitation, hamd9, hamd_29, hamilton9, hrsd9, v10_hamd_17_agitation, v1_hamd_17_agitation, v2_hamd_17_agitation
hsexIntegerRecommendedHRS Libido0::2;-90 =Absent: No loss or inadequate information; 1 = Mild: Loss of libido and/or some impairment of sexual function; 2 =Severe: Complete loss of sexual drive ; -9 = Not answeredgenital, ham14, ham_libido, hamd14, hamd17_genitalsxs, hamd_20, libido_hrsd, v10_hamd_3_genitalsymptoms, v1_hamd_3_genitalsymptoms, v2_hamd_3_genitalsymptoms
hdtot_rIntegerRecommendedHRS total score (recorded)hamd_total_17, hrsdscr, score_hrsd, v10_hamd_totalscore, v1_hamd_totalscore, v2_hamd_totalscore
days_baselineIntegerRecommendedDays since baselinedate, vdahrsd
levelString10RecommendedTreatment level
monthIntegerRecommendedMonth in Follow-Up
time_pointIntegerRecommendedAssessment time point5= Screening; 10= Baseline; 21, 22, 23 = Mid-point 1, 2, 3; 30= End-of-treatment; 41, 42, 43= Follow-up1, 2, 3 etc.
hrsd_totalIntegerRecommendedHRS total scorehrsd_r
hamd_02IntegerRecommendedHopelessness0::4;-90=Absent; 1=Mild; 2=Moderate; 3=Moderately severe; 4=Severe; -9 = Not answeredham23, ham27, ham_hopeless, hopeless, hopelessness
hamd_04IntegerRecommendedHelplessness0::4;-90=Absent; 1=Mild; 2=Moderate; 3=Moderately severe; 4=Severe; -9 = Not answeredham22, ham26, ham_helpless, helpless, helplessness
hamd_05IntegerRecommendedSocial withdrawal0::40=Absent; 1=Mild; 2=Moderate; 3=Moderately severe; 4=Severehamilton23
hamd_09IntegerRecommendedHypersomnia0::2;-90 =Absent; 1 =Mild: Less than 60 minutes; 2 = Obvious and definite: goes to bed more than 60 minutes earlier on most nights ; -9 = Not answeredham_hypersom_time, hamilton28, hypersomnia
hamd_10IntegerRecommendedSomatic symptoms gastrointestinal0::20=Normal; 1=Mild; 2=Moderate to severegastro, hamd12, hamilton12, hrsd12, symptomsgastro
hamd_11IntegerRecommendedAppetite increase0::3; -90=Absent; 1=Mild: Minimal or slight increase in appetite, food cravings; 2=Obvious: Definite and marked increase in food Intake; 3=Severe; -9 =NAappetite, apptinc, ham_appetite_incr, hamilton24
hamd_12IntegerRecommendedIncreased eating0::30=Absent; 1=Mild; 2=Moderate; 3=Markedhamilton25
hamd_13IntegerRecommendedCarbohydrate craving0::30=Absent; 1=Mild; 2=Moderate; 3=Markedcarbcrav, hamilton26
hamd_15IntegerRecommended14b Loss of weight rated by ward staff0::20=Normal; 1=Mild; 2=Moderate to severeham_wlossrec, hamd17
hamd_16IntegerRecommended15a Weight Gain0::2;-90 = Absent; 1 = Doubtful or minimal: Less than 5 lbs in 2 wks; 2 = Obvious: Greater than or equal to 5 lbs over the past 2 weeks ; -9 = Not answeredham_weight_gain, hamilton27, wtgain
hamd_17IntegerRecommended15b Gain of weight rated by ward staff0::20=Normal; 1=Mild; 2=Moderate to severe
hamd_18IntegerRecommendedSomatic symptoms general0::20=Normal; 1=Mild; 2=Moderate to severegeneral, hamd13, hamd6_6, hamilton13, hrsd13, som_gen, symptomsgeneral, v10_hamd_9_somaticgeneral, v1_hamd_9_somaticgeneral, v2_hamd_9_somaticgeneral
hamd_19IntegerRecommendedFatiguability0::40=Absent; 1=Mild; 2=Moderate; 3=Moderately severe; 4=Severeanergia, fatigue, hamilton22
hamd_22IntegerRecommendedWorthlessness0::4;-90=Absent; 1=Mild; 2=Moderate; 3=Moderately severe; 4=Severe; -9 = Not answeredham24, ham28, ham_worthless, worthles, worthlessness
hamd_25IntegerRecommendedConcentration0::40=Absent; 1=Mild; 2=Moderate; 3=Moderately severe; 4=Severe
hamd_31IntegerRecommended29A. (H18) Diurnal Variation0::30=No variation or not currently depressed; 1=Worse in AM; 2=Worse in PM; 3=Worse in afternoondepint, diurnal, ham18a
hamd_32IntegerRecommended29B. When present, mark the severity of the variation:0::2;-90=Normal; 1=Mild; 2=Moderate to severe; -9 = Not answereddiurnalampm, diurnalv, ham18, ham_diurnal, ham_diuvarsev
hamd_33IntegerRecommendedDepersonalization/derealization0::40=Absent; 1=Mild; 2=Moderate; 3=Moderately severe; 4=Severedeperson, depersonalization, dereal, ham19, hamilton19
hamd_34IntegerRecommendedParanoid symptoms0::40=Absent; 1=Mild; 2=Moderate; 3=Moderately severe; 4=Severeham20, hamilton20, paranoia, paranoid
hamd_35IntegerRecommendedObsessive and compulsive symptoms0::20=Normal; 1=Mild; 2=Moderate to severeham21, hamilton21, hocd, obsess, obsession
hamd_36FloatRecommendedHAMD Total 17 Item Scoreham17tot, ham_tot17, hamdscor, score17
hamd_score_24FloatRecommendedHAMD Total 24 Item Scoreham24tot, score, score24
subject_descriptionString4,000RecommendedSubject related information (e.g the affection, phenotype, disease information, etc.).
siteString100RecommendedSiteStudy Sitesiteid
session_idString20Recommendedsession ID/screening IDscreeningid
visitString50RecommendedVisit nameCharacter description of each type of visitvisit_name, visitn, visitnum, vtypbima, vtypbprs
version_formString100RecommendedForm used/assessment nameform_name
completedIntegerRecommendedChecks if completed0::30=No; 1=Yes; 2=Yes, lost; 3=Unverifiedtstst
weekFloatRecommendedWeek in level/study99=week 10-week 14intid
hypersom_1IntegerRecommendedHypersomnia: During the past week, have you been sleeping too much?0::40=No increase in sleep length, 1=At least one hour increase, 2=2+hours increase, 3=3+hours increase, 4=4+hours increase,
hyplenIntegerRecommendedSleep length used to measure Hypersomnia1;21=Euthymic, 2=8-Hour,
ca220IntegerRecommendedCurrent condition - Other depressive symptoms: Diurnal variation1::31=Worse in morning; 2=Worse in evening; 3=No differencedepintim
diurvarIntegerRecommendedDiurnal variation: mood/energy0::30=No variation or not currently present; 1=Mild intensity; 2=Moderate intensity;3=Severe intensitydiurnalv
diurtmIntegerRecommendedDiurnal variation mood/energy: time period1;21=Afternoon;2=Evening
phaseIntegerRecommendedPhase9 =follow up
vis_typeIntegerRecommendedVisit type0::21=Phone; 0=doctor's office; 2=No, not phone interviewphone
hwl_hxIntegerRecommendedHRS Weight loss by history0::30=No weight loss; 1=Probable weight loss associated with present illness; 2=Definite weight loss; 3= not assessedhamilton16a, v1_hamd_5_weightloss, v1_hamd_5_weightloss_history, v2_hamd_5_weightloss_history
hwl_wkIntegerRecommendedHRS Weight loss by week0::30=Less than 1lb. during past week; 1=Greater than 1lb. During the past week; 2=Greater than 2lb. during the past week; 3=not assessedhrsd16b, v10_hamd_5_weightloss, v1_hamd_5_weightloss_weekly, v2_hamd_5_weightloss_weekly
date_updatedDateRecommendedDate record updatededit_date
neurotmhString10RecommendedTime Hourstimeh
neurotmmString10RecommendedTime Minutestimem
study_idIntegerRecommendedStudy ID number46=Acute Phase; 47=Stabilization Phase
mildtimeString2RecommendedDiurnal variation: mild variation timeAM;PMeosdthdt
sevtimeString2RecommendedDiurnal variation: severe variation timeAM;PMeosalvdt
saps_ad10IntegerRecommendedRater number
ksd1durIntegerRecommendedDuration of Depressed Mood (weeks)888=NA; 999=Missingv10_hamd_1_depressedmood_length, v1_hamd_1_depressedmood_length, v2_hamd_1_depressedmood_length
visnumFloatRecommendedNumeric Visit Number-1.5 = Pre-Screening; -1 = Screening; 0 = Baseline; ## = Visit ## (from 1 to 10); Whole numbers = standard monthly visits; #.001 - #.009 = Unscheduled; #.1 = End of Phase 1; #.2 = End of Phase 2; #.3 = End of Phase 3; #.4 = End of Open Choice Phase; #.5 = End of Study; #.6 = Genetic Analysis; 1000=all visits
hamsc21IntegerRecommendedScore 21 itemssum items 1-21 (including 16A, 16B, and 18B--but not 18A following Rating Instructions)
hamsc28IntegerRecommendedscore 28 itemssum items 1-28 (including 16A, 16B, and 18B--but not 18A following Rating Instructions)ham_tot28, hamtot28
ham18aIntegerRecommendedDiurnal Variation Severity AM0::2GRID D = Symptom Intensity Absent; Mild or Probable; Marked or Definite.
ham18bIntegerRecommendedDiurnal Variation Severity PM0::2GRID D = Symptom Intensity Absent; Mild or Probable; Marked or Definite.
me2IntegerRecommendedStatus0;10 = Past [Inactive]; 1 = Active
hsleepIntegerRecommendedOversleeping0::2;-90 = Absent; 1 = Mild or infrequently: Oversleeps less than 60 minutes; 2 =Obvious or definite: Oversleeps more than 60 minutes most days ; -9 = Not answeredham_hypersom_over
hnapIntegerRecommendedNapping0::2;-90 = Absent; 1 = Mild or infrequently: Naps less than 30 minutes; 2 =Obvious or definite: Naps more than 30 minutes most days; -9 = Not answeredham_hypersom_naps
hpreIntegerRecommendedPsychic Retardation (Slowness of speech and thought processes. Describes inhibition of will or feeling as if thought processes are paralyzed)0::4;-90 = Absent; 1 = Mild: Slight slowing of speech or thought; 2 = Moderate: Delayed in answering questions, describes volitional inhibition; 3 = Severe: Slowness of speech and thought processes sufficient to markedly prolong interview; 4 =Extreme: Nearly mute, minimally responsive ; -9 = Not answeredham_psyc_retard
hmreIntegerRecommendedMotoric Retardation (Slowness in movement and affective expression.)0::4;-90= Absent; 1 = Mild: Slight flattening of affect, fixed expression; 2 = Moderate: Monotonous voice and decrease in spontaneous movement; 3 = Severe: Obvious slowness of movement and gait; blunted affect; 4 =Extreme: Stuporous. Marked motoric retardation in gait and posture ; -9 = Not answeredham25, ham_motor_retard
scoreatypIntegerRecommendedsum of items 25, 26, 27, and 28 on the assessment
hrsd_24IntegerRecommendedRejection Sensitivity0::30=Absent; 1=Mild; 2=Moderate; 3=Severerejection
hrsd_26IntegerRecommendedHypersomnia (severity level)0::30=Absent; 1=Mild; 2=Moderate; 3=Severe
visitidIntegerRecommendedMetaTrial Visit IDSystem variable: unique code for each type of visit -use to merge files
agitate1IntegerRecommendedAgitation (Restlessness associated with anxiety)0::20 = Absent; 1 = Occasional; 2 = Frequent
aescodeIntegerRecommendedStaff code number of person completing this formrater_hamd1
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: hrsd01 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.