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Description
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Notes
Data Structures with shared data
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Mood and Anxiety Symptom Questionnaire

masq

01

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/projectid, subject_id
interview_dateDateRequiredDate on which the interview/genetic test/sampling/imaging 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.
genderString20RequiredSex of the subjectM;FM = Male; F = Female
masq_01IntegerRecommendedFelt confused
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq2_01, masq90_q19, masq_d30_1, masq_q19_confused
masq_02IntegerRecommendedStartled easily
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq2_02, masq90_q72, masq_d30_2, masq_q72_easilystartled, startle
masq_03IntegerRecommendedFelt successful
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq2_03, masq90_q74, masq_q74_successful
masq_04IntegerRecommendedFelt worthless
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq2_04, masq90_q90, masq_d30_4, masq_q90_worthless
masq_05IntegerRecommendedFelt nauseous
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelyanxiety24, masq2_05, masq90_q56, masq_d30_5, masq_q56_nauseous, nauseous
masq_06IntegerRecommendedFelt really happy
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq2_06, masq90_q20, masq_q20_happy
masq_07IntegerRecommendedFelt irritable
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq2_07, masq90_q48, masq_d30_7, masq_q48_irritable
masq_08IntegerRecommendedFelt dizzy or light-headed
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelyanxiety25, dizzy, masq2_08, masq90_q49, masq_d30_8, masq_q49_lightheaded
masq_09IntegerRecommendedFelt optimistic
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq2_09, masq90_q58, masq_q58_optimistic
masq_10IntegerRecommendedFelt hopeless
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq2_10, masq90_q47, masq_d30_10, masq_q47_hopeless
masq_11IntegerRecommendedFelt like was having a lot of fun
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq2_11, masq90_q40, masq_q40_havingfun
masq_12IntegerRecommendedBlamed myself for a lot of things
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq2_12, masq90_q79, masq_d30_12, masq_q79_blamedself
masq_13IntegerRecommendedFelt dissatisfied with everything
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq2_13, masq90_q82, masq_d30_13, masq_q82_dissatisfied
masq_14IntegerRecommendedFelt like I accomplished a lot
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq2_14, masq90_q11, masq_q11_accomplishedalot
masq_15IntegerRecommendedTrembling or shaking
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq2_15, masq90_q66, masq_d30_15, masq_q66_shaking, tremble
masq_16IntegerRecommendedFelt like I had a lot to look forward to
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq2_16, masq90_q50, masq_q50_muchtolookforwardto
masq_17IntegerRecommendedFelt pessimistic about the future
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq2_17, masq90_q41, masq_d30_17, masq_q41_pessimistic
masq_18IntegerRecommendedPain in my chest
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelychstpain, masq2_18, masq90_q14, masq_d30_18, masq_q14_paininchest
masq_19IntegerRecommendedFelt really talkative
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq2_19, masq90_q77, masq_q77_talkative
masq_20IntegerRecommendedHad hot or cold spells
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelyhotcold, masq2_20, masq90_q69, masq_d30_20, masq_q69_hotcoldspells
masq_21IntegerRecommendedWas short of breath
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelyanxiety13, masq2_21, masq90_q12, masq_d30_21, masq_q12_shortofbreath, shbreath
masq_22IntegerRecommendedFelt really "up" or lively
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq2_22, masq90_q3, masq_q3_lively
masq_23IntegerRecommendedFelt inferior to others
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq2_23, masq90_q61, masq_d30_23, masq_q61_inferior
masq_24IntegerRecommendedMuscles were tense or sore
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelyanxiety34, masq2_24, masq90_q53, masq_d30_24, masq_q53_soremuscles, muscle
masq_25IntegerRecommendedHad trouble making decisions
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq2_25, masq90_q24, masq_d30_25, masq_q24_troublemakingdecisions
masq_26IntegerRecommendedFelt like I had a lot of energy
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq2_26, masq90_q30, masq_q30_energy
masq_27IntegerRecommendedHeart was racing or pounding
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelyanxiety31, hrtrace, masq2_27, masq90_q46, masq_d30_27, masq_q46_poundingheart
masq_28IntegerRecommendedWorried about a lot of things
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq2_28, masq90_q78, masq_d30_28, masq_q78_worried
masq_29IntegerRecommendedFelt really good about myself
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq2_29, masq90_q60, masq_q60_goodaboutself
masq_30IntegerRecommendedHad trouble swallowing
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq2_30, masq90_q76, masq_d30_30, masq_q76_troubleswallowing, swallow
masq2_score_aaFloatRequiredAnxious Arousalmasq90_aa, masq_aa, masq_d30_anx_arous
masq2_score_adFloatRequiredAnhedonic Depressionmasq90_ad, masq_d30_anhed_depr
masq2_score_gdFloatRequiredGeneral Distress Anxious Symptomsmasq_gda
masq2_score_gddFloatRequiredGeneral Distress Depressive Symptoms
subject_descriptionString4,000RecommendedSubject related information (e.g the affection, phenotype, disease information, etc.).
siteString100RecommendedSiteStudy Sitesiteid
studyString100RecommendedStudy
weekFloatRecommendedWeek in level/study99=week 10-week 14
shakyhndIntegerRecommendedHands were shaky
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq90_q43, masq_q43_shakyhands
lumpthrtIntegerRecommendedLump in throat
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq90_q83, masq_q83_lumpinthroat
bsil23IntegerRecommendedNausea or upset stomach
0::4; 9
0 = Not at all; 1 = A little bit; 2 = Moderately; 3 = Quite a bit; 4 = Extremely; 9 = Blank/Missingmasq90_q73, masq_q73_upsetstomach, upststom
sweatyIntegerRecommendedHands cold and sweaty
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq90_q44, masq_q44_sweatyhands
relaxIntegerRecommendedUnable to relax
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq90_q63, masq_q63_unabletorelax
twitchIntegerRecommendedMuscles twitched
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelyanxiety28, masq90_q52, masq_q52_tremblingmuscles
bsil33IntegerRecommendedNumbness or tingling in parts of you body
0::4; 9
0 = Not at all; 1 = A little bit; 2 = Moderately; 3 = Quite a bit; 4 = Extremely; 9 = Blank/Missingmasq90_q84, masq_q84_numbness
bsil38IntegerRecommendedFeeling tense or keyed up
0::4; 9
0 = Not at all; 1 = A little bit; 2 = Moderately; 3 = Quite a bit; 4 = Extremely; 9 = Blank/Missingmasq90_q2, masq_q2_tense
frequriIntegerRecommendedUrinate frequently
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq90_q38, masq_q38_urinatefrequently
afraidIntegerRecommendedFelt afraid
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq90_q4, masq_q4_afraid
phaseIntegerRecommendedPhase9 =follow up
visdayIntegerRecommendedNumber of days from study baseline to date of visitdate
masq_startleIntegerRecommendedStartled easily
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremely
masq_afr2dieIntegerRecommendedWas afraid I was going to die
0::4
0=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq90_q27, masq_q27_afraidgoingtodie
masq_nervIntegerRecommendedFelt nervous0::40=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq90_q57, masq_q57_nervous
masq_unIntegerRecommendedFelt uneasy0::40=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq90_q87, masq_q87_uneasy
masq_faintIntegerRecommendedFelt faint0::40=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq90_q37, masq_q37_faint
masq_chokIntegerRecommendedChoking0::40=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq90_q15, masq_q15_choking
masq_dmIntegerRecommendedDry mouth0::40=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq90_q51, masq_q51_drymouth
masq_onedgeIntegerRecommendedFelt on edge0::40=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq90_q88, masq_q88_onedge
masq_d30_3IntegerRecommendedFelt successful (Imputed)0::40=Extremely; 1=Quite a bit; 2=Moderately; 3=A little bit; 4=Not at alldass_1a
masq_d30_6IntegerRecommendedFelt really happy (Imputed)0::40=Extremely; 1=Quite a bit; 2=Moderately; 3=A little bit; 4=Not at alldass_23
masq_d30_9IntegerRecommendedFelt optimistic (Imputed)0::40=Extremely; 1=Quite a bit; 2=Moderately; 3=A little bit; 4=Not at all
masq_d30_11IntegerRecommendedFelt like I was having a lot of fun (Imputed)0::40=Extremely; 1=Quite a bit; 2=Moderately; 3=A little bit; 4=Not at alldass_19a
masq_d30_14IntegerRecommendedFelt like I accomplised a lot (Imputed)0::40=Extremely; 1=Quite a bit; 2=Moderately; 3=A little bit; 4=Not at alldass_13a
masq_d30_16IntegerRecommendedFelt like I had a lot to look forward to (Imputed)0::40=Extremely; 1=Quite a bit; 2=Moderately; 3=A little bit; 4=Not at all
masq_d30_19IntegerRecommendedFelt really talkative (Imputed)0::40=Extremely; 1=Quite a bit; 2=Moderately; 3=A little bit; 4=Not at alldass_15a
masq_d30_22IntegerRecommendedFelt really 'up' or lively (Imputed)0::40=Extremely; 1=Quite a bit; 2=Moderately; 3=A little bit; 4=Not at alldass_29
masq_d30_26IntegerRecommendedFelt like I had a lot of energy (Imputed)0::40=Extremely; 1=Quite a bit; 2=Moderately; 3=A little bit; 4=Not at all
masq_d30_29IntegerRecommendedFelt really good about myself (Imputed)0::40=Extremely; 1=Quite a bit; 2=Moderately; 3=A little bit; 4=Not at alldass_16a
masq_d30_gen_distressFloatRecommendedGeneral Distress Score
version_formString100RecommendedForm used
masq_diarIntegerRecommendedHad diarrhea0::40=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremelymasq90_q26, masq_q26_diarrhea
bsimoFloatRecommendedMonths from Time 0 to assessmentmonfol
baseline_a_002String100RecommendedInterview Start Time:
idas_27IntegerRecommendedI looked forward to things with enjoyment1::55=not at all; 4= a little bit; 3= moderately; 2= quite a bit; 1 = extremelymasq90_q1, masq_q1_lookedforwardtothings
poms051IntegerRecommendedAlert0::4;-90=Not at all; 1=A little; 2=Moderately; 3=Quite a bit; 4=Extremely; -9=Unknownmasq90_q5, masq_q5_alert
scl99String20RecommendedWanting to be alonenot at all; a little bit; moderately; quite a bit; extremely; missingmasq90_q6, masq_q6_feltlikebeingalone
bsi111IntegerRecommended11. Poor appetite0::4; 90 = Not at all; 1 = A little bit; 2 = Moderately; 3 = Quite a bit; 4 = Extremely; 9 = Blank/Missingmasq90_q7, masq_q7_lossofappetite
bsi125IntegerRecommended25. Trouble falling asleep0::4; 90 = Not at all; 1 = A little bit; 2 = Moderately; 3 = Quite a bit; 4 = Extremely; 9 = Blank/Missingmasq90_q8, masq_q8_troublefallingasleep
diffattnIntegerRecommendedDifficulty sustaining attention0::4;-70=None; 1=Mild; 2=Moderate; 3=Severe; 4=Extreme; -7=Refusedmasq90_q9, masq_q9_troublepayingattention
idas_17IntegerRecommendedI woke up early and could not get back to sleep1::51=not at all; 2= a little bit; 3= moderately; 4= quite a bit; 5 = extremelymasq90_q16, masq_q16_troublestayingasleep
poms006IntegerRecommendedClear-headed0::4;-90=Not at all; 1=A little; 2=Moderately; 3=Quite a bit; 4=Extremely; -9=Unknownmasq90_q17, masq_q17_clearheaded
idas_61IntegerRecommendedI had trouble concentrating1::51=not at all; 2= a little bit; 3= moderately; 4= quite a bit; 5 = extremelymasq90_q18, masq_q18_troubleconcentrating
wn31IntegerRecommendedAfraid of losing control of self1::51=Not at all or very slightly; 2=Mildly; 3=Moderately; 4=Quite a bit; 5=Very muchmasq90_q21, masq_q21_losingcontrol
idas_8IntegerRecommendedI felt depressed1::51=not at all; 2= a little bit; 3= moderately; 4= quite a bit; 5 = extremelymasq90_q25, masq_q25_depressed
idas_40IntegerRecommendedI felt discouraged about things1::51=not at all; 2= a little bit; 3= moderately; 4= quite a bit; 5 = extremelymasq90_q28, masq_q28_discouraged
scl14String20Recommended14. feeling low in energy or slowed downnot at all; a little bit; moderately; quite a bit; extremely; missingmasq90_q29, masq_q29_sloweddown
poms029IntegerRecommendedFatigued0::4;-90=Not at all; 1=A little; 2=Moderately; 3=Quite a bit; 4=Extremely; -9=Unknownmasq90_q33, masq_q33_fatiguedeasily
pclc_9IntegerRecommendedLoss of interest in activities that you used to enjoy1::51=not at all; 2= a little bit; 3=moderately; 4=quite a bit; 5= extremelymasq90_q39, masq_q39_nothinginteresting
idas_50IntegerRecommendedI felt hopeful about the future1::51=not at all; 2= a little bit; 3= moderately; 4= quite a bit; 5 = extremelymasq90_q42, masq_q42_hopeful
idas_10IntegerRecommendedI was proud of myself1::51=not at all; 2= a little bit; 3= moderately; 4= quite a bit; 5 = extremelymasq90_q54, masq_q54_proud
atq_b_10dIntegerRecommended10) I'm so disappointed in myself. - Degree of belief1::51=not at all; 2=sometimes; 3=moderately often; 4=often; 5=all the timemasq90_q55, masq_q55_disappointedinself
impac_q9IntegerRecommended9 Was withdrawn from others1::51= Not at all to 5 = Severelymasq90_q59, masq_q59_withdrawn
idas_5IntegerRecommendedI felt fidgety, restless1::51=not at all; 2= a little bit; 3= moderately; 4= quite a bit; 5 = extremelymasq90_q64, masq_q64_restless
wn12IntegerRecommendedSad or blue, depressed, unhappy1::51=Not at all or very slightly; 2=Mildly; 3=Moderately; 4=Quite a bit; 5=Very muchmasq90_q65, masq_q65_sad
fatexp45IntegerRecommendedIn the past 7 days... How sluggish were you on average?1::51=Not at all; 2=A little bit; 3=Somewhat; 4=Quite a bit; 5=Very muchmasq90_q68, masq_q68_sluggish
idas_59IntegerRecommendedI felt like I had a lot of interesting things to do1::51=not at all; 2= a little bit; 3= moderately; 4= quite a bit; 5 = extremelymasq90_q70, masq_q70_manyinterestingthings
baseline_h_017IntegerRecommendedThoughts of ending your life0::4; -888; -9990=Not at all; 1=A little bit; 2=Moderately; 3=Quite a bit; 4=Extremely; -888=Not Applicable; -999=Missingmasq90_q75, masq_q75_thoughtaboutdeathsuicide
bsi105IntegerRecommended5. Trouble remembering things0::4; 90 = Not at all; 1 = A little bit; 2 = Moderately; 3 = Quite a bit; 4 = Extremely; 9 = Blank/Missingmasq90_q81, masq_q81_troubleremembering
comments_miscString4,000RecommendedMiscellaneous comments on study, interview, methodology relevant to this form datanotes
lessintFloatRecommendedless interest in activitiesmasq90_loi
stai25IntegerRecommendedGenerally. I feel like a failure1::51=Not at all so; 2= Somewhat; 3=Moderately so; 4=Very much so; 5=Extremelymasq90_q36, masq_q36_failure
masq90_q10IntegerRecommendedFelt bored0::40 = Not at all; 1 = A little bit; 2 = Moderately; 3 = Quite a bit; 4 = Extremelymasq_q10_bored
masq90_q22IntegerRecommendedFelt like I was going crazy0::40 = Not at all; 1 = A little bit; 2 = Moderately; 3 = Quite a bit; 4 = Extremelymasq_q22_goingcrazy
masq90_q23IntegerRecommendedFelt like crying0::40 = Not at all; 1 = A little bit; 2 = Moderately; 3 = Quite a bit; 4 = Extremelymasq_q23_crying
masq90_q31IntegerRecommendedAble to laugh easily0::40 = Not at all; 1 = A little bit; 2 = Moderately; 3 = Quite a bit; 4 = Extremelymasq_q31_laugheasily
masq90_q32IntegerRecommendedMoved quickly and easily0::40 = Not at all; 1 = A little bit; 2 = Moderately; 3 = Quite a bit; 4 = Extremelymasq_q32_movedquickly
masq90_q34IntegerRecommendedThoughts came to me very easily0::40 = Not at all; 1 = A little bit; 2 = Moderately; 3 = Quite a bit; 4 = Extremelymasq_q34_thoughtscameeasily
masq90_q35IntegerRecommendedFelt nothing was enjoyable0::40 = Not at all; 1 = A little bit; 2 = Moderately; 3 = Quite a bit; 4 = Extremelymasq_q35_nothingenjoyable
masq90_q45IntegerRecommendedFelt something awful would happen0::40 = Not at all; 1 = A little bit; 2 = Moderately; 3 = Quite a bit; 4 = Extremelymasq_q45_somethingawful
masq90_q62IntegerRecommendedFelt like being with others0::40 = Not at all; 1 = A little bit; 2 = Moderately; 3 = Quite a bit; 4 = Extremelymasq_q62_feltlikebeingwithothers
masq90_q67IntegerRecommendedFelt I didn't need much sleep0::40 = Not at all; 1 = A little bit; 2 = Moderately; 3 = Quite a bit; 4 = Extremelymasq_q67_didnotneedmuchsleep
masq90_q71IntegerRecommendedTook extra effort to get started0::40 = Not at all; 1 = A little bit; 2 = Moderately; 3 = Quite a bit; 4 = Extremelymasq_q71_efforttogetstarted
masq90_q80IntegerRecommendedFelt confident0::40 = Not at all; 1 = A little bit; 2 = Moderately; 3 = Quite a bit; 4 = Extremelymasq_q80_confident
masq90_q85IntegerRecommendedCould do everything I needed to do0::40 = Not at all; 1 = A little bit; 2 = Moderately; 3 = Quite a bit; 4 = Extremelymasq_q85_doeverythingneeded
masq90_q86IntegerRecommendedFelt unattractive0::40 = Not at all; 1 = A little bit; 2 = Moderately; 3 = Quite a bit; 4 = Extremelymasq_q86_unattractive
masq90_q89IntegerRecommendedSlept very well0::40 = Not at all; 1 = A little bit; 2 = Moderately; 3 = Quite a bit; 4 = Extremelymasq_q89_sleptwell
poms038IntegerRecommendedCheerful0::4;-90=Not at all; 1=A little; 2=Moderately; 3=Quite a bit; 4=Extremely; -9=Unknownmasq90_q13 , masq_q13_cheerful
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
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  • 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
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Distribution for DataStructure: masq01 and Element:
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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.