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Infant Sleep Questionnaire

isq

01

Infant Sleep Questionnaire

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
relationshipIntegerRecommendedRelationship of respondent to individual
1::93;-999
1 = Biological mom; 2 = Biological dad; 3 = Grandparent; 4 = Special education (sped) teacher; 5 = General education teacher; 6 = Occupational therapist; 7 = Speech and language therapist; 8 = Behavioral therapist; 9 = Paraprofessional; 10 = Aide; 11 = Principal; 12 = Administrator; 13 = Other; 14 = Content teacher; 15 = Parent center director; 16 = Self; 17=Adoptive mother; 18=Adoptive father; 19=Foster mother; 20 = Foster father; 21=Grandmother; 22=Grandfather; 23=Step-mother; 24 = Step-father; 25=Aunt; 26=Uncle; 27=Missing Data; 28=Both parents;31= Grandmother from mother side; 32= Grandfather from mother side; 33= Grandmother from father side; 34= Grandfather from father side; 36= Brother; 37= Sister; 38= Cousin; 39= female caregiver; 40=male caregiver; 41=Female child; 42=Male child; 43=Spouse/Mate; 44=Friend; 45=Parent; 46=Significant other; 47=Sibling; 48=Son/Daughter; 49=Son-in-law/Daughter-in law; 50=Other Relative; 51=Paid caregiver; 52=Friends; 53=Roommate; 54=Supervisor; 55=mother's boyfriend; 56=other parental figure; 57=Summary; 58=counselor ; 59 = other female relative; 60 = other male relative; 61 = non-relative ; 62=Maternal Aunt; 63=Maternal Uncle; 64=Maternal Cousin; 65 = Paternal Aunt; 66=Paternal Uncle; 67=Paternal Cousin ; 68=Biological/Adoptive Mother and Grandmother; 69=Biological/Adoptive Mother and Stepmother and Grandmother; 70=Biological/Adoptive Mother and Grandmother and Foster Father; 71=Biological/Adoptive Mother and Stepmother and Foster Mother; 72=Biological/Adoptive Mother and Foster Mother; 73=Biological/Adoptive Mother and Biological/Adoptive Father; 74=Biological/Adoptive Mother and Stepmother and Biological/Adoptive Father; 75=Biological/Adoptive Mother and Other; 76=Biological/Adoptive Mother and Stepmother and Stepfather; 77=Biological/Adoptive Mother and Stepfather; 78=Biological/Adoptive Mother and Grandfather; 79=Biological/Adoptive Mother and Stepmother and Foster Father; 80=Biological/Adoptive Mother and Stepmother; 81=Guardian, female; 82=Other female; 83=Guardian, male; 84=Other male; 85=Other/Grandparent/Nanny; 86 = Mother, Father, Guardian; 87 = Daughter, son, grandchild; 88 = Professional (e.g., social worker, nurse, therapist, psychiatrist, or group home staff); 90=Other; -999=Missing; 89 = Biological parent; 91 = Stepparent; 92 = Adoptive parent; 93 = Foster parent
medhx_sleep_probString50RecommendedDoes subject have sleep problems?
Yes; No
medhx_sleep_prob_noteString255RecommendedNote regarding sleep problems
isq_sleep_prob_lengthString50RecommendedHow long has this been a problem?
isq_sleep_prob_worseIntegerRecommendedHas the problem become worse?0; 10 = No; 1 = Yes
isq_sleep_prob_causeString100RecommendedWhat do you think is causing the sleep problem?
isq_sleep_prob_helpString100RecommendedWhat have you previously tried to help the problem?
isq_sleep_whereIntegerRecommendedWhere does your infant sleep?0; 1; 2; 3; 40 = Infant crib in a separate room; 1 = Infant crib (bassinet) in parents' room; 2 = In parents' bed; 3 = Infant crib in room with sibling; 4 = Other
isq_sleep_sideIntegerRecommendedDoes you infant sleep better on his/her:0; 1; 2; 30 = Left side; 1 = Right side; 2 = Back; 3 = Stomach
isq_sleep_withIntegerRecommendedDoes your infant sleep better with:0; 1; 2; 30 = Pacifier; 1 = Blanket; 2 = Stuffed toy; 3 = Other
isp_sleep_troubleIntegerRequiredDoes your infant have trouble falling asleep?0; 1;9990 = No; 1 = Yes
isq_sleep_routineIntegerRecommendedIs there a regular bedtime routine?0; 10 = No; 1 = Yes
isq_fall_asleepIntegerRecommendedDoes your infant fall asleep:0; 1; 2; 3; 4; 5; 60 = While feeding; 1 = Being rocked; 2 = Being held; 3 = In crib alone; 4 = In bed near parent; 5 = Other
isq_awaken_nightIntegerRequiredDoes your infant awaken during the night?0; 1;9990 = No; 1 = Yes
isq_return_sleepIntegerRecommendedIf so, does your child have difficulty returning to sleep?0; 10 = No; 1 = Yes
isq_snoreIntegerRecommendedDoes your infant tend to snore?0; 10 = No; 1 = Yes
isq_wakeString25RecommendedDoes your infant wake on his/her own or do you wake them?
isq_breakfast_whereIntegerRecommendedYour infant eats breakfast at:0; 10 = Home; 1 = Center
isq_breakfast_timeString25RecommendedTime your infant eats breakfast
isq_dietIntegerRecommendedYour infant's diet0; 1; 2; 3; 40 = Breast milk; 1 = Formula; 2 = Whole Milk; 3 = Juice; 4 = Solid foods
isq_sched_6amString25RecommendedSchedule of sleeping - 6 amSleep; Awake; Feeding
isq_sched_630amString25RecommendedSchedule of sleeping - 6:30 amSleep; Awake; Feeding
isq_sched_7amString25RecommendedSchedule of sleeping - 7 amSleep; Awake; Feeding
isq_sched_730amString25RecommendedSchedule of sleeping - 7:30 amSleep; Awake; Feeding
isq_sched_8amString25RecommendedSchedule of sleeping - 8 amSleep; Awake; Feeding
isq_sched_830amString25RecommendedSchedule of sleeping - 8:30 amSleep; Awake; Feeding
isq_sched_9amString25RecommendedSchedule of sleeping - 9 amSleep; Awake; Feeding
isq_sched_930amString25RecommendedSchedule of sleeping - 9:30 amSleep; Awake; Feeding
isq_sched_10amString25RecommendedSchedule of sleeping - 10 amSleep; Awake; Feeding
isq_sched_1030amString25RecommendedSchedule of sleeping - 10:30 amSleep; Awake; Feeding
isq_sched_11amString25RecommendedSchedule of sleeping - 11 amSleep; Awake; Feeding
isq_sched_1130amString25RecommendedSchedule of sleeping - 11:30 amSleep; Awake; Feeding
isq_sched_noonString25RecommendedSchedule of sleeping - 12 pmSleep; Awake; Feeding
isq_sched_1230pmString25RecommendedSchedule of sleeping - 12:30 pmSleep; Awake; Feeding
isq_sched_1pmString25RecommendedSchedule of sleeping - 1 pmSleep; Awake; Feeding
isq_sched_130pmString25RecommendedSchedule of sleeping - 1:30 pmSleep; Awake; Feeding
isq_sched_2pmString25RecommendedSchedule of sleeping - 2 pmSleep; Awake; Feeding
isq_sched_230pmString25RecommendedSchedule of sleeping - 2:30 pmSleep; Awake; Feeding
isq_sched_3pmString25RecommendedSchedule of sleeping - 3 pmSleep; Awake; Feeding
isq_sched_330pmString25RecommendedSchedule of sleeping - 3:30 pmSleep; Awake; Feeding
isq_sched_4pmString25RecommendedSchedule of sleeping - 4 pmSleep; Awake; Feeding
isq_sched_430pmString25RecommendedSchedule of sleeping - 4:30 pmSleep; Awake; Feeding
isq_sched_5pmString25RecommendedSchedule of sleeping - 5 pmSleep; Awake; Feeding
isq_sched_530pmString25RecommendedSchedule of sleeping - 5:30 pmSleep; Awake; Feeding
isq_sched_6pmString25RecommendedSchedule of sleeping - 6 pmSleep; Awake; Feeding
isq_sched_630pmString25RecommendedSchedule of sleeping - 6:30 pmSleep; Awake; Feeding
isq_sched_7pmString25RecommendedSchedule of sleeping - 7 pmSleep; Awake; Feeding
isq_sched_730pmString25RecommendedSchedule of sleeping - 7:30 pmSleep; Awake; Feeding
isq_sched_8pmString25RecommendedSchedule of sleeping - 8 pmSleep; Awake; Feeding
isq_sched_830pmString25RecommendedSchedule of sleeping - 8:30 pmSleep; Awake; Feeding
isq_sched_9pmString25RecommendedSchedule of sleeping - 9 pmSleep; Awake; Feeding
isq_sched_930pmString25RecommendedSchedule of sleeping - 9:30 pmSleep; Awake; Feeding
isq_sched_10pmString25RecommendedSchedule of sleeping - 10 pmSleep; Awake; Feeding
isq_sched_1030pmString25RecommendedSchedule of sleeping - 10:30 pmSleep; Awake; Feeding
isq_sched_11pmString25RecommendedSchedule of sleeping - 11 pmSleep; Awake; Feeding
isq_sched_1130pmString25RecommendedSchedule of sleeping - midnightSleep; Awake; Feeding
isq_sched_midnightString25RecommendedSchedule of sleeping - 12:30 amSleep; Awake; Feeding
isq_sched_1230amString25RecommendedSchedule of sleeping - 1 amSleep; Awake; Feeding
isq_sched_1amString25RecommendedSchedule of sleeping - 1:30 amSleep; Awake; Feeding
isq_sched_130amString25RecommendedSchedule of sleeping - 2 amSleep; Awake; Feeding
isq_sched_2amString25RecommendedSchedule of sleeping - 2:30 amSleep; Awake; Feeding
isq_sched_230amString25RecommendedSchedule of sleeping - 3 amSleep; Awake; Feeding
isq_sched_3amString25RecommendedSchedule of sleeping - 3:30 amSleep; Awake; Feeding
isq_sched_330amString25RecommendedSchedule of sleeping - 4 amSleep; Awake; Feeding
isq_sched_4amString25RecommendedSchedule of sleeping - 4:30 amSleep; Awake; Feeding
isq_sched_430amString25RecommendedSchedule of sleeping - 5 amSleep; Awake; Feeding
isq_sched_5amString25RecommendedSchedule of sleeping - 5:30 amSleep; Awake; Feeding
isq_sched_530amString25RecommendedSchedule of sleeping - 6 amSleep; Awake; Feeding
isq_current_breath_diffIntegerRecommendedCurrent sleep symptoms - Difficulty breathing when asleep?0; 1; 20 = Never; 1 = Occasionally; 2 = Frequently
isq_current_breath_stopIntegerRecommendedCurrent sleep symptoms - Stops breathing during sleep?0; 1; 20 = Never; 1 = Occasionally; 2 = Frequently
isq_current_snoreIntegerRecommendedCurrent sleep symptoms - Snores?0; 1; 20 = Never; 1 = Occasionally; 2 = Frequently
isq_current_sweatIntegerRecommendedCurrent sleep symptoms - Sweating during sleep?0; 1; 20 = Never; 1 = Occasionally; 2 = Frequently
isq_current_screamIntegerRecommendedCurrent sleep symptoms - Screaming during sleep?0; 1; 20 = Never; 1 = Occasionally; 2 = Frequently
isq_current_moveIntegerRecommendedCurrent sleep symptoms - Legs or arms moving during sleep?0; 1; 20 = Never; 1 = Occasionally; 2 = Frequently
isq_current_wakeIntegerRecommendedCurrent sleep symptoms - Walking up during the night?0; 1; 20 = Never; 1 = Occasionally; 2 = Frequently
isq_current_outIntegerRecommendedCurrent sleep symptoms - Getting out of bed during the night?0; 1; 20 = Never; 1 = Occasionally; 2 = Frequently
isq_current_resistIntegerRecommendedCurrent sleep symptoms - Resistance going to bed?0; 1; 20 = Never; 1 = Occasionally; 2 = Frequently
isq_current_grindIntegerRecommendedCurrent sleep symptoms - Teeth grinding?0; 1; 20 = Never; 1 = Occasionally; 2 = Frequently
isq_current_painIntegerRecommendedCurrent sleep symptoms - Uncomfortable feelings or pains in legs?0; 1; 20 = Never; 1 = Occasionally; 2 = Frequently
isq_current_rockIntegerRecommendedCurrent sleep symptoms - Rock their head or body from side to side?0; 1; 20 = Never; 1 = Occasionally; 2 = Frequently
birth_prematureString20RecommendedWas birth premature?
Yes; No
premature_weeksIntegerRecommendedWeeks premature0 = Full term
strnicuString3RecommendedDid the child spend any time in the NICU?Yes; No; NANA=Not Applicable
ldnb_ventilatorString50RecommendedWas the baby on a respirator (ventilator)
No;Yes;Don't Know
child_medallergyString50RequiredDoes the Child have a medication allergy?
Yes;No;999
999=NA/missing
child_medallergy_cmtString255RecommendedSpecific medication items the Child is allergic to
child_foodallergyString50RequiredDoes the Child have a food allergy?
Yes;No;999
999=NA/missing
child_foodallergy_cmtString255RecommendedSpecific food items the Child is allergic to
currentmed_prescriptionString255RecommendedPrescription (Medication, Dose, Frequency, Reason)
medical_problemsString255RecommendedMedical problem/medical diagnosis (include diagnosis professional dates details)
hospitalizationsString200Recommendedhas the subject had any hospitalisations
surg_surgeverString50RecommendedHas the child ever had surgery
No;Yes;Don't Know
surg_surgtype1String255RecommendedTYPE OF SURGERY 1
surg_surgtype2String255RecommendedTYPE OF SURGERY 2
isq_develop_hold_headIntegerRecommendedIs your infant - Holding his/her head up?0; 10 = No; 1 = Yes
isq_develop_turnIntegerRecommendedIs your infant - Turning over?0; 10 = No; 1 = Yes
isq_develop_sitIntegerRecommendedIs your infant - Sitting up?0; 10 = No; 1 = Yes
isq_develop_pullIntegerRecommendedIs your infant - Pulling up to standing?0; 10 = No; 1 = Yes
isq_develop_cruiseIntegerRecommendedIs your infant - Cruising (walking while holding on to something)?0; 10 = No; 1 = Yes
isq_develop_crawlIntegerRecommendedIs your infant - Crawling?0; 10 = No; 1 = Yes
isq_develop_standIntegerRecommendedIs your infant - Standing by self?0; 10 = No; 1 = Yes
isq_develop_walkIntegerRecommendedIs your infant - Walking?0; 10 = No; 1 = Yes
isq_develop_bottleIntegerRecommendedIs your infant - Holding his/her own bottle?0; 10 = No; 1 = Yes
isq_develop_drinkIntegerRecommendedIs your infant - Drinking from a cup?0; 10 = No; 1 = Yes
isq_family_osaIntegerRecommendedDoes anyone in the family have Obstructive Sleep Apnea?0; 10 = No; 1 = Yes
isq_family_rslIntegerRecommendedDoes anyone in the family have Restless Leg Syndrome?0; 10 = No; 1 = Yes
isq_family_narcoIntegerRecommendedDoes anyone in the family have narcolepsy?0; 10 = No; 1 = Yes
isq_family_smokeIntegerRecommendedDoes anyone in the family smoke?0; 10 = No; 1 = Yes
mother_ageIntegerRecommendedMother's age0 :: 1200
father_ageIntegerRecommendedFather's age0 :: 1200
ques_age1IntegerRecommendedAge -Sibling 1(in months)0 :: 1200
ques_age2IntegerRecommendedAge -Sibling 2(in months)0 :: 1200
ques_age3IntegerRecommendedAge -Sibling 3(in months)0 :: 1200
ques_age4IntegerRecommendedAge -Sibling 4(in months)0 :: 1200
ques_age5IntegerRecommendedAge -Sibling 5(in months)0 :: 1200
instrString500RecommendedInstructionsShould be completed if additional instructions were given to participant (e.g., Take two tablespoons in morning)
version_formString100RecommendedForm used/assessment name
bisq_1IntegerRecommendedDoes your child snore during their sleep?0::30 = Never; 1 = Only when he/she has a cold or allergies; 2 = Sometimes; 3 = Almost always/Always
bisq1IntegerRecommendedOver the past two weeks: Where does your child sleep most of the time? (CHECK ONE) - Selected Choice0::40= In his/her own room; 1= In parents' room; 2= In sibling or other's room; 3= In another room of the house; 4= Other, please specify
bisq1_5_textString500RecommendedOver the past two weeks: Where does your child sleep most of the time? (CHECK ONE) - Other, please specify: - Text
bisq_2IntegerRecommendedOver the past two weeks: Which of the following does your child sleep in most of the time?0::60 = Crib; 1 = Own bed (any size); 2 = Parents' bed (any size); 3 = Bassinet; 4 = Infant seat; 5 = Swing; 6 = Other, please specify
bisq_3String500RecommendedOver the past two weeks: Which of the following does your child sleep in most of the time? Other - specify
bisq_4IntegerRecommendedOver the past two weeks: In what position does your child sleep most of the time? (CHECK ONE)0::20 = On his/her belly; 1 = On his/her side; 2 = On his/her back
bisq_5String45RecommendedOver the past two weeks: Which of the following usually occurs on most nights for your child in the hour before bedtime? (CHECK ALL THAT APPLY):0 = Bath; 1 = Massage; 2 = Read books/being read to; 3 = Rocked; 4 = Watch television; 5 = Have dinner or a snack; 6 = Have a bottle, drink, or nurse; 7 = Run around; 8 = Brush teeth; 9 = Play; 10 = Cuddle; 11 = Say prayers; 12 = Sing songs; 13 = Listen to music; 14 = Other, please specify
bisq_6String500RecommendedOver the past two weeks: Which of the following usually occurs on most nights for your child in the hour before bedtime? Other - specify
bisq_7String35RecommendedOver the past two weeks: How does your child fall asleep most of the time? (CHECK ALL THAT APPLY):0 = While being bottle-fed; 1 = While being breast-fed/nursing; 2 = While being rocked; 3 = While being held; 4 = While watching television; 5 = In swing or stroller; 6 = In his/her own crib/bed alone in the room; 7 = In parent's bed alone in the room; 8 = In his/her own crib/bed and with a parent in the room; 9 = In parent's bed and with a parent in the room; 10 = In another room of the house (e.g., living room); 11 = Other, please specify
bisq_8String500RecommendedOver the past two weeks: How does your child fall asleep most of the time? Other - specify
bisq2IntegerRecommendedIn a typical 7-day week, how often does your child have the exact same bedtime routine?0::40= Never; 1= 1-2 nights per week;2= 3-4 nights per week; 3= 5-6 nights per week; 4= Every night
bisq3String20RecommendedWhat time do you usually start your child's bedtime?
bisq4String20RecommendedWhat time do you usually put your child to bed at night? (time of turning out the light.)
bisq5IntegerRecommendedTypically, how difficult is bedtime for your child, for example, fussing, crying, protesting?0::40= Very easy;1= Somewhat easy; 2= Neither easy nor difficult; 3= Somewhat difficult; 4= Very difficult
bisq6IntegerRecommendedHow long does it typically take your child to fall asleep at night?0::40= Less than 5 min; 1= 5-15 min; 2= 16-30 min; 3= 31-60 min; 4= More than 1 hour (4)
bisq7IntegerRecommendedHow often, if ever, does your child have a difficult time falling asleep at night?0::60= Every night; 1= 5-6 nights per week; 2= 3-4 nights per week;3= 1-2 nights per week; 4= 1-3 nights per month; 5= Less than once a month; 6= Never
bisq8String5RecommendedHow many times does your child typically wake during the night?Use hyphens for ranges (e.g., 3 - 5), use tildes for approximations (e.g, ~3)
bisq9IntegerRecommendedHow often does your child wake during the night, if ever?0::60= Every night; 1= 5-6 nights per week; 2= 3-4 nights per week; 3= 1-2 nights per week; 4= 1-3 nights per month; 5= Less than once a month; 6= Never
bisq10String500RecommendedHow much total time does your child spend sleeping during the NIGHT (between 7 in the evening and 8 in the morning)?
bisq11String500RecommendedHow many naps does your child take during a typical DAY (between 8 in the morning and 7 in the evening)?
bisq12String500RecommendedHow much total time does your child spend sleeping during the DAY (between 8 in the morning and 7 in
bisq13IntegerRecommendedPlease rate how well your child usually sleeps at night: (CHECK ONE)0::50= Very well; 1= Well; 2= Fairly well; 3= Fairly poorly; 4= Poorly; 5= Very poorly
bisq14IntegerRecommendedDo you consider your child's sleep as a problem? (CHECK ONE)0::20= A very serious problem; 1= A small problem; 2= Not a problem at all
bisq_9String45RecommendedWhen your child wakes up during the night, what do you do? (CHECK ALL THAT APPLY)0 = Pick up my child and hold/rock him/her until child falls asleep; 1 = Pick up my child and put him/her back down while child is still awake; 2 = Rub or pat my child but do not pick up or take out of crib/bed; 3 = Bottle feed child back to sleep; 4 = Breastfeed/nurse child back to sleep; 5 = Give my child a pacifier; 6 = Change diaper; 7 = Comfort my child verbally but don't pick child up or take child our of crib/bed; 8 = Bring my child into my bed; 9 = Let my child cry and fall back to sleep by himself/herself; 10 = Give my child a few minutes to see if he/she falls back to sleep; 11 = Play with my child until child is ready to go back to sleep; 12 = Watch television/a video with my child until he/she falls asleep; 13 = Sing to child; 14 = Other, please specify
bisq_10String500RecommendedWhen your child wakes up during the night, what do you do? Other, please specify
bisq_11FloatRecommendedOn a typical night, how much total time during the NIGHT is your child awake? Hours
bisq_12IntegerRecommendedOn a typical night, how much total time during the NIGHT is your child awake? Minutes
bisq_13FloatRecommendedOn a typical night, what is the longest stretch of time that your child is asleep during the night without waking up? Hours
bisq_14IntegerRecommendedOn a typical night, what is the longest stretch of time that your child is asleep during the night without waking up? Minutes
bisq_15FloatRecommendedHow much total time does your child spend sleeping during the NIGHT (between 7 in the evening and 8 in the morning)? Hours
bisq_16IntegerRecommendedHow much total time does your child spend sleeping during the NIGHT (between 7 in the evening and 8 in the morning)? Minutes
bisq_17IntegerRecommendedHow many naps does your child take during a typical DAY (between 8 in the morning and 7 in the evening)
bisq_18FloatRecommendedHow much total time does your child spend sleeping during the DAY (between 8 in the morning and 7 in the evening) Hours
bisq_19IntegerRecommendedHow much total time does your child spend sleeping during the DAY (between 8 in the morning and 7 in the evening) Minutes
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: isq01 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.