Data Dictionary

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Published Data Elements

The library below contains all common data elements and unique data elements. This includes published and approved data elements that have been created from FITBIR's data dictionary as well as the final version of the NINDS TBI Common Data Elements.

For the NINDS TBI Core CDEs Click Here

Published Form Structures

The library below contains all Published, Awaiting Publication, and Shared Draft form structures. Form structures in the Archived or Draft state require a FITBIR account.

NINDS CDE project defined a set of Core CDEs to collect an essential information applicable to any study.
Examples of the General Core CDEs and forms include basic demographic information and basic enrollment data collected from all study participants.
Examples of disease-specific Core CDEs for Traumatic Brain Injury studies include CDEs for the Glasgow Outcome Scale.

TBI CORE COMMON DATA ELEMENTS

variable nametitleelement typedefinitiondatatypemaximum character quantityinput restrictionminimum valuemaximum valuepermissible valuespermissible value descriptionsunit of measurepreferred question text
BirthDateBirth dateCommon Data ElementDate (and time, if applicable and known) the participant/subject was bornDate or Date & TimeFree-Form EntryWhat is the subject's date of birth?
EduPrimCaregiverYrCtEducation primary caregiver year countCommon Data ElementNumber of years of education of the primary caregiver (age 5 and beyond).Numeric ValuesFree-Form Entry030YearHow many years of education does the parent, guardian, or caregiver have?
EduSchoolParticipStatusEducation school participation statusCommon Data ElementStatus of participant/subjects current attendance at schoolAlphanumericSingle Pre-Defined Value SelectedGoing to school;Neither;On vacation from school (between grades);UnknownGoing to school;Neither;On vacation from school (between grades);UnknownWhat is the subject current attendance in school?
EduYrCtEducation year countCommon Data ElementNumber of years of education completed (age 5 and beyond)Numeric ValuesFree-Form Entry030YearHow many years of education does the subject have?
EmplmtExpndOTHEmployment expanded other textCommon Data ElementThe free-text field related to Employment expanded status specifying other text. Status of participant/subjects current employmentAlphanumeric4000Free-Form EntryOther, specify
EmplmtExpndStatusEmployment expanded statusCommon Data ElementStatus of participant/subjects current employmentAlphanumericSingle Pre-Defined Value SelectedNot in paid workforce;Other, specify;Sick leave or maternity leave;Special employment;Temporary/odd jobs/less than minimum wage jobs;Unable to obtain information;Unemployed;Unknown;Working 20-34 hrs/week, at least minimum wage;Working full time;Working less than 20 hrs/week, at least minimum wageNot in paid workforce (including child, retired, student, homemaker, disabled pre-injury);Other, specify;Sick leave or maternity leave;Special employment (sheltered workshop, supportive employment, job coach);Temporary/odd jobs/less than minimum wage jobs;Unable to obtain information;Unemployed;Unknown;Working 20-34 hrs/week, at least minimum wage;Working full time (35 hrs or more/week, at least minimum wage);Working less than 20 hrs/week, at least minimum wageWhat is the status of the subject's current employment?
EmplmtOTHEmployment other textCommon Data ElementThe free-text field related to 'Employment status' specifying other text. Status of participant/subject's current employmentAlphanumeric4000Free-Form EntryOther, specify
EmplmtStatuEmployment statusCommon Data ElementStatus of participant/subject's current employmentAlphanumericSingle Pre-Defined Value SelectedDisabled, permanently or temporarily;Keeping house;Looking for work, unemployed;Only temporarily laid off;Other, specify;Retired;Sick leave or maternity leave;Student;Unknown;Working NowDisabled, permanently or temporarily;Keeping house;Looking for work, unemployed;Only temporarily laid off;Other, specify;Retired;Sick leave or maternity leave;Student;Unknown;Working NowEmployment status
EthnUSACatEthnicity USA categoryCommon Data ElementCategory of ethnicity the participant/subject most closely identifies withAlphanumericSingle Pre-Defined Value SelectedHispanic or Latino;Not Hispanic or Latino;Not reported;UnknownA person of Cuban, Mexican, Puerto Rican, South or Central American, or other Spanish culture or origin, regardless of race. The term "Spanish origin" can also be used in addition to "Hispanic or Latino".;A person not meeting the definition for Hispanic or Latino.;Not provided or available;Could not be determined or unsureWhat is the subject's ethnicity?
GCSEyeRespnsScaleGlasgow Coma Scale (GCS) - eye response scaleCommon Data ElementGlasgow Coma Scale (GCS) - Best eye response (E). The GCS is a standardized instrument for assessing the level of consciousness. It evaluates three aspects of responsiveness: eye opening, motor response, verbal response.AlphanumericSingle Pre-Defined Value Selected1;2;3;4;Unknown;UntestableNo eye opening;Eye opening to pain;Eye opening to speech/verbal command;Eyes open spontaneously;Unknown;UntestableBest eye response
GCSMotorRespnsScaleGlasgow Coma Scale (GCS) - motor response scaleCommon Data ElementGlasgow Coma Scale (GCS) - Best motor response (M). The GCS is a standardized instrument for assessing the level of consciousness. It evaluates three aspects of responsiveness: eye opening, motor response, verbal response.AlphanumericSingle Pre-Defined Value Selected1;2;3;4;5;6;Unknown;UntestableNo motor response;Abnormal extension/Extensor response;Abnormal flexion;Flexion withdrawal/withdraws from pain;Localizes pain;Obeys command;Unknown;UntestableBest motor response
GCSTotalScoreGlasgow Coma Scale (GCS) - total scoreCommon Data ElementGlasgow Coma Scale (GCS) - Total Score. The GCS is a standardized instrument for assessing the level of consciousness. It evaluates three aspects of responsiveness: eye opening, motor response, verbal response. The total score is the sum of the scores for the three response types. (3-15)AlphanumericSingle Pre-Defined Value Selected10;11;12;13;14;15;3;4;5;6;7;8;9;Unknown;Untestable10;11;12;13;14;15;3;4;5;6;7;8;9;Unknown;UntestableGCS Total Score
GCSVerbalRspnsScaleGlasgow Coma Scale (GCS) - verbal response scaleCommon Data ElementScore that describes the participant's verbal response according to the Glasgow Coma Scale (GCS)AlphanumericSingle Pre-Defined Value Selected1;2;3;4;5;Unknown;UntestableNo verbal response/sounds;Incomprehensible sound;Inappropriate words;Confused;Oriented;Unknown;UntestableBest verbal response
GenderTypGender TypeCommon Data ElementSelf-reported gender of the participant/subject. Gender is the socially constructed identity of sex. Gender is equated with phenotypic sex. Gender may differ from the sex of an individual determined genetically.AlphanumericSingle Pre-Defined Value SelectedFemale;Male;Not reported;Unknown;UnspecifiedFemale;Male;Not Reported;Unknown;Undifferentiated/Indeterminant/IntersexWhat is the subject's gender?
GlasgowOutcomeScalExtScoreGlasgow Outcome Scale Extended (GOS-E) - ScoreCommon Data ElementGlasgow Outcome Scale Extended (1-8)Numeric ValuesSingle Pre-Defined Value Selected1;2;3;4;5;6;7;8Dead;Vegetative State;Lower Severe Disability;Upper Severe Disability;Lower Moderate Disability;Upper Moderate Disability;Lower Good Recovery;Upper Good RecoveryScore
ImgBrainAssessmtResltImaging brain assessment resultCommon Data ElementResult of the global assessment of brain imagingAlphanumericSingle Pre-Defined Value SelectedAbnormal;Normal;Not assessed;UnknownAbnormal;Normal;Not assessed;UnknownBrain imaging result (choose one)
InjElapsedTimeInjury elapsed timeCommon Data ElementThe elapsed time (in minutes) from the time of injuryNumeric ValuesFree-Form Entry0Minute
InjICDExtCauseCodeInjury ICD external cause codeCommon Data ElementCode to classify the external cause of the injuryAlphanumeric255Free-Form Entryand or ICD 9 CM e codes
LOCDurRangLoss of consciousness duration rangeCommon Data ElementThe range of duration of loss of consciousness the participant/subject experiencedAlphanumericSingle Pre-Defined Value Selected1-24 hours;1-29 minutes;14-20 days;1-5 hours;1-7 days;7 days;8-13 days;90 or more days;None;No return of consciousness prior to death or discharge;Unknown1-24 hours;1-29 minutes;14-20 days;1-5 hours;1-7 days;7 days;8-13 days;90 or more days;None;No return of consciousness prior to death or discharge;UnknownDuration of loss of consciousness
MedclHistCondSNOMEDCTCodeMedical history condition SNOMED CT codeCommon Data ElementSystematized Nomenclature Of Medicine Clinical Terms (SNOMED CT) code for medical condition/disease reported by the participant/subjectAlphanumeric255Free-Form EntrySNOMED CT code
MedclHistCondTxtMedical history condition textCommon Data ElementVerbatim text for the medical condition/disease reported by the participant/subject or documented in the medical record as part of medical historyAlphanumeric4000Free-Form EntryMedical history condition text
PGCSEyeRespnsScorePediatric Glasgow Coma Scale (PGCS) - eye response scoreCommon Data ElementScore for the participant's eye response according to the Pediatric Glasgow Coma Scale (PGCS) if the participant is under the age of 18.AlphanumericSingle Pre-Defined Value Selected1;2;3;4;Unknown;UntestableNo eye opening;Eye opening to pain;Eye opening to speech;Eyes open spontaneously;Unknown;UntestableBest eye response
PGCSMotorRespnsScorePediatric Glasgow Coma Scale (PGCS) - motor response scoreCommon Data ElementScore for the participant's motor response according to the Pediatric Glasgow Coma Scale (PGCS) if the participant is under the age of 18.AlphanumericSingle Pre-Defined Value Selected1;2;3;4;5;6;Unknown;UntestableNo motor response;Extension to pain;Flexion to pain;Withdrawal from pain;Localizing pain;Obeys commands;Unknown;UntestableMotor response
PGCSTotalScorePediatric Glasgow Coma Scale (PGCS) - total scoreCommon Data ElementScore for the participant's total Pediatric Glasgow Coma Scale (PGCS) score of the 3 tests, eye, motor, and verbal responses. A score of less than 9 would indicate that that participant is in a severe coma while a score of greater than 9 is a mild or no coma at all.AlphanumericSingle Pre-Defined Value Selected10;11;12;13;14;15;3;4;5;6;7;8;9;Unknown;Untestable10;11;12;13;14;15;3;4;5;6;7;8;9;Unknown;UntestableTotal score
PGCSVerbalRespnsScorePediatric Glasgow Coma Scale (PGCS) - verbal response scoreCommon Data ElementScore for the participant's verbal response according to the Pediatric Glasgow Coma Scale (PGCS) if the participant is under the age of 18.AlphanumericSingle Pre-Defined Value Selected1;2;3;4;5;Unknown;UntestableNo vocal response;Inconsolable, agitated;Inconsistently consolable, moaning;Cried, but it consolable, inappropriate interactions;Smiles, oriented to sounds, follows objects, interacts;Unknown;UntestableVerbal response
PGOSEScorePediatric Glasgow Outcome Scale - Extended (GOS-E Peds) - ScoreCommon Data ElementScore for the participant, as a part of the Pediatric Glasgow Outcome Scale - Extended (PGOSE).Numeric ValuesSingle Pre-Defined Value Selected1;2;3;4;5;6;7;8Upper Good Recovery (Upper GR);Lower Good Recovery (Lower GR);Upper Moderate Disability (Upper MD);Lower Moderate Disability (Lower MD);Upper Severe Disability (Upper SD);Lower Severe Disability (Lower SD);Vegetative State (VS);DeathGlasgow Outcome Scale -Extended, Pediatric Revision
PstTraumAmnsDurRangPost traumatic amnesia duration rangeCommon Data ElementThe range of duration of post-traumatic amnesia the participant/subject experiencedAlphanumericSingle Pre-Defined Value Selected1-24 hours;1-29 minutes;1-7 days;24 hours;30-59 minutes;30 minutes to 24 hours;>7 days;N/A;None;Unknown1-24 hours;1-29 minutes;1-7 days;24 hours;30-59 minutes;30 minutes to 24 hours;>7 days;N/A (e.g., death);None;UnknownDuration of post-traumatic amnesia
RaceUSACatRace USA categoryCommon Data ElementThe patient's self declared racial origination, independent of ethnic origination, using OMB approved categories.AlphanumericMultiple Pre-Defined Values SelectedAmerican Indian or Alaska Native;Asian;Black or African-American;Native Hawaiian or Other Pacific Islander;Not Reported;Unknown;WhiteA person having origins in any of the original peoples of North, Central, or South America, and who maintains tribal affiliations or community attachment.;A person having origins in any of the original peoples of the Far East, Southeast Asia, or the Indian subcontinent including, for example, Cambodia, China, India, Japan, Korea, Malaysia, Pakistan, the Philippine Islands, Thailand, and Vietnam. (Note: Individuals from the Philippine Islands have been recorded as Pacific Islanders in previous data collection strategies.);A person having origins in any of the black racial groups of Africa. Terms such as "Haitian" or "Negro" can be used in addition to "Black or African American.;A person having origins in any of the original peoples of Hawaii, Guam, Samoa, or other Pacific Islands.;Not provided or unavailable;Could not be determined or unsure;A person having origins in any of the original peoples of Europe, the Middle East, or North Africa.What is the subject’s race (as defined by OMB)?
SAHStatusSubarachnoid hemorrhage indicatorCommon Data ElementIndicator of macroscopic blood located between the brain surface and the arachnoid membrane. On CT and MR, the blood in this location will follow the contour of the sulci and cisterns. Acute SAH is hyperdense on CT and hyperintense on FLAIR MR imaging.AlphanumericSingle Pre-Defined Value SelectedAbsent;Indeterminate;Premorbid;PresentAbsent;Indeterminate;Premorbid (when applicable);PresentSubarachnoid hemorrhage
SexSubjectGenotypTypSex participant or subject genotype typeCommon Data ElementThe difference between male and female, based upon the interactions between genes and between the genotype and the environment. Genotype is identified based on the individuals reproductive organs and functions assigned by chromosomal complement.AlphanumericSingle Pre-Defined Value SelectedOther, specify;Unknown;Unspecified;XX;XXX;XXY;XY;XYYOther, specify;Unknown;Undifferentiated/Indeterminant/Intersex;XX;XXX;XXY;XY;XYYWhat is the subject's sex or genotype?
SexSubjectGenotypOTHSex participant or subject genotype other textCommon Data ElementThe free-text field related to Sex participant or subject genotype type specifying other text. The difference between male and female, based upon the interactions between genes and between the genotype and the environment. Genotype is identified based on the individuals reproductive organs and functions assigned by chromosomal complement.Alphanumeric4000Free-Form EntryOther, specify
TBITypTBI typeCommon Data ElementBroad classification of the type of traumatic brain injury experienced by participant/subjectAlphanumericMultiple Pre-Defined Values SelectedBlast;Closed;Crush;Penetrating;UnknownBlast;Closed;Crush;Penetrating;UnknownType of TBI
Download Core TBI CDE definitions

GENERAL CORE COMMON DATA ELEMENTS

variable nametitleelement typedefinitiondatatypemaximum character quantityinput restrictionminimum valuemaximum valuepermissible valuespermissible value descriptionsunit of measurepreferred question text
EnrldStdyDateTimeEnrolled in study date and timeCommon Data ElementDate (and time, if applicable and known) the participant/subject is enrolled into the studyDate or Date & TimeFree-Form EntryDate Enrolled
SexSubjectGenotypOTHSex participant or subject genotype other textCommon Data ElementThe free-text field related to Sex participant or subject genotype type specifying other text. The difference between male and female, based upon the interactions between genes and between the genotype and the environment. Genotype is identified based on the individuals reproductive organs and functions assigned by chromosomal complement.Alphanumeric4000Free-Form EntryOther, specify
MedclHistTakenDateTimeMedical history taken date and timeCommon Data ElementDate (and time, if applicable and known) the participant/subject's medical history was takenDate or Date & TimeFree-Form EntryDate the medical history taken
RaceUSACatRace USA categoryCommon Data ElementThe patient's self declared racial origination, independent of ethnic origination, using OMB approved categories.AlphanumericMultiple Pre-Defined Values SelectedAmerican Indian or Alaska Native;Asian;Black or African-American;Native Hawaiian or Other Pacific Islander;Not Reported;Unknown;WhiteA person having origins in any of the original peoples of North, Central, or South America, and who maintains tribal affiliations or community attachment.;A person having origins in any of the original peoples of the Far East, Southeast Asia, or the Indian subcontinent including, for example, Cambodia, China, India, Japan, Korea, Malaysia, Pakistan, the Philippine Islands, Thailand, and Vietnam. (Note: Individuals from the Philippine Islands have been recorded as Pacific Islanders in previous data collection strategies.);A person having origins in any of the black racial groups of Africa. Terms such as "Haitian" or "Negro" can be used in addition to "Black or African American.;A person having origins in any of the original peoples of Hawaii, Guam, Samoa, or other Pacific Islands.;Not provided or unavailable;Could not be determined or unsure;A person having origins in any of the original peoples of Europe, the Middle East, or North Africa.What is the subject's race (as defined by OMB)?
RaceCatRace categoryCommon Data ElementCategory of race(s) or region(s) the participant/subject most closely identifies withAlphanumericMultiple Pre-Defined Values SelectedAlaskan Native;Black African;Black African American;Black Afro Carribean;Far Eastern Asian;Hawaiian;Inuit;North American Indian;Not reported;Other;Pacific Islander;South Asian;South/Central American Indian;Unknown;Western Asian;White African;White Australian;White European;White Middle Eastern;White North American;White South AmericanAlaskan Native (for OMB purposes, this value is considered to be part of American Indian or Alaska Native);Black African (for OMB purposes, this value is considered to be part of Black or African-American);Black African American (for OMB purposes, this value is considered to be part of Black or African-American);Black Afro Carribean (for OMB purposes, this value is considered to be part of Black or African-American);Far Eastern Asian (e.g., China, Japan, Korea, etc.) (for OMB purposes, this value is considered to be part of Asian);Hawaiian (for OMB purposes, this value is considered to be part of Native Hawaiian or Other Pacific Islander);Inuit (for OMB purposes, this value is considered to be part of American Indian or Alaska Native);North American Indian (for OMB purposes, this value is considered to be part of American Indian or Alaska Native);Not reported;Other;Pacific Islander (for OMB purposes, this value is considered to be part of Native Hawaiian or Other Pacific Islander);South Asian (Indian subcontinent) (for OMB purposes, this value is considered to be part of Asian);South/Central American Indian (for OMB purposes, this value is considered to be part of American Indian or Alaska Native);Unknown;Western Asian (e.g., Pakistan, Iraq, Iran) (for OMB purposes, this value is considered to be part of Asian);White African (for OMB purposes, this value is considered to be part of White);White Australian (for OMB purposes, this value is considered to be part of White);White European (for OMB purposes, this value is considered to be part of White);White Middle Eastern (for OMB purposes, this value is considered to be part of White);White North American (for OMB purposes, this value is considered to be part of White);White South American (for OMB purposes, this value is considered to be part of White)What is the subject's race (expanded categories)?
InfConsntObtIndInformed consent obtained indicatorCommon Data ElementIndicator of whether informed consent was obtained for the participant/subject to participate in the clinical research study.AlphanumericSingle Pre-Defined Value SelectedNo;Unknown;YesNo;Unknown;YesWas informed consent obtained?
MedclHistCondStrtDateTimeMedical history condition start date and timeCommon Data ElementDate (and time, if applicable and known) for the start of an event in the participant's/subject's medical historyDate or Date & TimeFree-Form EntryMedical history TBI condition start date and time
OffStdyDateTimeOff study date and timeCommon Data ElementDate (and time, if applicable and known) when participant/subject completes study or is prematurely withdrawn from study (i.e., is not being followed and will not receive intervention/treatment)Date or Date & TimeFree-Form EntryOff study date
PGOSEScorePediatric Glasgow Outcome Scale - Extended (GOS-E Peds) - ScoreCommon Data ElementScore for the participant, as a part of the Pediatric Glasgow Outcome Scale - Extended (PGOSE).Numeric ValuesSingle Pre-Defined Value Selected1;2;3;4;5;6;7;8Upper Good Recovery (Upper GR);Lower Good Recovery (Lower GR);Upper Moderate Disability (Upper MD);Lower Moderate Disability (Lower MD);Upper Severe Disability (Upper SD);Lower Severe Disability (Lower SD);Vegetative State (VS);DeathGlasgow Outcome Scale -Extended, Pediatric Revision
MedclHistCondTxtMedical history condition textCommon Data ElementVerbatim text for the medical condition/disease reported by the participant/subject or documented in the medical record as part of medical historyAlphanumeric4000Free-Form EntryMedical history condition text
StdyEligibilityIndStudy eligibility indicatorCommon Data ElementIndicator of whether the participant/subject is eligible for participation in the clinical research protocol according to its inclusion and exclusion criteriaAlphanumericSingle Pre-Defined Value SelectedNo;Unknown;YesNo;Unknown;YesIs the participant subject eligible for study enrollment based on the above criteria?
GenderTypGender TypeCommon Data ElementSelf-reported gender of the participant/subject. Gender is the socially constructed identity of sex. Gender is equated with phenotypic sex. Gender may differ from the sex of an individual determined genetically.AlphanumericSingle Pre-Defined Value SelectedFemale;Male;Not reported;Unknown;UnspecifiedFemale;Male;Not Reported;Unknown;Undifferentiated/Indeterminant/IntersexWhat is the subject's gender?
MedclHistCondSNOMEDCTCodeMedical history condition SNOMED CT codeCommon Data ElementSystematized Nomenclature Of Medicine Clinical Terms (SNOMED CT) code for medical condition/disease reported by the participant/subjectAlphanumeric255Free-Form EntrySNOMED CT code
EthnUSACatEthnicity USA categoryCommon Data ElementCategory of ethnicity the participant/subject most closely identifies withAlphanumericSingle Pre-Defined Value SelectedHispanic or Latino;Not Hispanic or Latino;Not reported;UnknownA person of Cuban, Mexican, Puerto Rican, South or Central American, or other Spanish culture or origin, regardless of race. The term "Spanish origin" can also be used in addition to "Hispanic or Latino".;A person not meeting the definition for Hispanic or Latino.;Not provided or available;Could not be determined or unsureWhat is the subject's ethnic background?
EnrldStdyIndEnrolled in study indicatorCommon Data ElementIndicator of whether the participant/subject was enrolled into the clinical research study.AlphanumericSingle Pre-Defined Value SelectedNo;Unknown;YesNo;Unknown;YesWas the participant/subject enrolled into the study?
BirthDateBirth dateCommon Data ElementDate (and time, if applicable and known) the participant/subject was bornDate or Date & TimeFree-Form EntryWhat is the subject's date of birth?
EduSchoolParticipStatusEducation school participation statusCommon Data ElementStatus of participant/subjects current attendance at schoolAlphanumericSingle Pre-Defined Value SelectedGoing to school;Neither;On vacation from school (between grades);UnknownGoing to school;Neither;On vacation from school (between grades);UnknownWhat is the subject current attendance in school?
SexSubjectGenotypTypSex participant or subject genotype typeCommon Data ElementThe difference between male and female, based upon the interactions between genes and between the genotype and the environment. Genotype is identified based on the individuals reproductive organs and functions assigned by chromosomal complement.AlphanumericSingle Pre-Defined Value SelectedOther, specify;Unknown;Unspecified;XX;XXX;XXY;XY;XYYOther, specify;Unknown;Undifferentiated/Indeterminant/Intersex;XX;XXX;XXY;XY;XYYWhat is the subject's sex or genotype?
EmplmtStatuEmployment statusCommon Data ElementStatus of participant/subject's current employmentAlphanumericSingle Pre-Defined Value SelectedDisabled, permanently or temporarily;Keeping house;Looking for work, unemployed;Only temporarily laid off;Other, specify;Retired;Sick leave or maternity leave;Student;Unknown;Working NowDisabled, permanently or temporarily;Keeping house;Looking for work, unemployed;Only temporarily laid off;Other, specify;Retired;Sick leave or maternity leave;Student;Unknown;Working NowEmployment status
EmplmtOTHEmployment other textCommon Data ElementThe free-text field related to 'Employment status' specifying other text. Status of participant/subject's current employmentAlphanumeric4000Free-Form EntryOther, specify
InformConsntObtnDateTimeInformed consent obtained date and timeCommon Data ElementDate (and time, if applicable and known) on which the participant/subject (or the legal representative on behalf of the participant/subject) agrees to participate in a protocol, treatment, or other activity by signing an informed consent document.Date or Date & TimeFree-Form EntryDate and time of informed consent
OffStdyRsnOff study reasonCommon Data ElementPrimary reason participant/ subject is no longer participating in study (i.e., is not being followed and will not receive intervention/treatment).AlphanumericSingle Pre-Defined Value SelectedCompleted study;Died;Lost to follow-up (or cannot be located);Refused further participation (or withdrew consent)Completed study;Died;Lost to follow-up (or cannot be located);Refused further participation (or withdrew consent)Off study reason
Download General Core CDE definitions