COVID-19 Variable Compare Tool

The Variable Compare Tool (VCT) is intended to assist investigators who have used protocols from the PhenX Toolkit COVID-19 research collection and who would like to combine their data with studies using instruments from the PhenX COVID-19 Library. See More…

To support development of the VCT, data dictionaries were developed for prioritized full instruments from the COVID-19 Protocol Library. The selected full-instruments were then compared at the variable level.

There are three features available to explore the instruments and modules included in the VCT:

Keyword Search returns specific variables (identical, comparable or related) and lists the names of instruments and PhenX protocols that include them.
Side by Side Comparison allows the user to directly compare two instruments and/or PhenX protocols at the variable level.
Compare Instruments and PhenX Protocols allows the user to compare many instruments and PhenX protocols at once. The heatmap visualization shows the number of similar variables in common among a set of instruments and PhenX protocols. Clicking on a heatmap box will take the user to a Side by Side comparison of the variables.

Keyword Search
Side by Side Comparison
Compare Instruments and PhenX Protocols

Searching by keywords will allow you to find variables related to those keywords. In addition, you will be able to find instruments that feature similar variables.

To see how similar two instruments (or protocols) are, select the two instruments you wish to compare from the below list. Results will summarize the percentage of variables in common and provide side by side comparisons of which the common variables are in common.

48 Instruments and PhenX Protocols

COVID-19 Related Social Distancing Experiences In Collection Expand

Protocol ID: 930101
Protocol Type: Module
Source: All of Us COVID-19 Participant Experience Survey (COPE)
View protocol: COVID-19 Related Social Distancing Experiences

COVID-19 Related Social Interactions In Collection Expand

Protocol ID: 930201
Protocol Type: Module
Source: Coping with COVID-19: Impact on technology use, mobility, food security, depression and social isolation
View protocol: COVID-19 Related Social Interactions

Use of Personal Protective Equipment (PPE) by Healthcare Workers In Collection Expand

Protocol ID: 930301
Protocol Type: Module
Source: HERO Registry Protective Equipment Survey
View protocol: Use of Personal Protective Equipment (PPE) by Healthcare Workers

COVID-19 Knowledge, Attitudes, and Avoidant Behaviors In Collection Expand

Protocol ID: 930401
Protocol Type: Module
Source: Coronavirus Tracking Survey of the Understanding America Survey (UAS)
View protocol: COVID-19 Knowledge, Attitudes, and Avoidant Behaviors

COVID-19 Related Health Questions In Collection Expand

Protocol ID: 940101
Protocol Type: Module
Source: UK COVID-19 Questionnaire
View protocol: COVID-19 Related Health Questions

Vulnerability and Exposure to COVID-19 In Collection Expand

Protocol ID: 940201
Protocol Type: Module
Source: COVID-19 Experiences (COVEX)
View protocol: Vulnerability and Exposure to COVID-19

Health Conditions, Medications and Health Care During COVID-19 Pandemic In Collection Expand

Protocol ID: 940301
Protocol Type: Module
Source: COVID-19 Community Response Survey
View protocol: Health Conditions, Medications and Health Care During COVID-19 Pandemic

COVID-19 Vaccination - Adult In Collection Expand

Protocol ID: 940401
Protocol Type: Module
Source: Johns Hopkins COVID Long Study
View protocol: COVID-19 Vaccination - Adult

COVID-19 Vaccination - Child In Collection Expand

Protocol ID: 940402
Protocol Type: Module
Source: Long COVID in Children and Young People (The CLoCk Study)
View protocol: COVID-19 Vaccination - Child

Media Use During COVID-19 In Collection Expand

Protocol ID: 950101
Protocol Type: Module
Source: COVID-19 Experiences (COVEX)
View protocol: Media Use During COVID-19

COVID-19 Related Information and Trust in News and Government Institutions In Collection Expand

Protocol ID: 950201
Protocol Type: Module
Source: RAND 2020 American Life Panel Survey (ALP) on Impacts of COVID-19
View protocol: COVID-19 Related Information and Trust in News and Government Institutions

COVID-19 and Mental Health Impacts In Collection Expand

Protocol ID: 960101
Protocol Type: Module
Source: COVID-19 Community Response Survey
View protocol: COVID-19 and Mental Health Impacts

Effects of COVID-19 Outbreak - Adult In Collection Expand

Protocol ID: 960201
Protocol Type: Module
Source: ECHO COVID-19 Questionnaire - Adult Primary Version
View protocol: Effects of COVID-19 Outbreak - Adult

Effects of COVID-19 Outbreak - Child Self-Report In Collection Expand

Protocol ID: 960203
Protocol Type: Module
Source: ECHO Impacts of COVID-19 Outbreak on Child Self-Report
View protocol: Effects of COVID-19 Outbreak - Child Self-Report

Effects of COVID-19 Outbreak - Child Parent-Report In Collection Expand

Protocol ID: 960205
Protocol Type: Module
Source: ECHO Impacts of COVID-19 Outbreak on Child Parent-Report
View protocol: Effects of COVID-19 Outbreak - Child Parent-Report

COVID-19 Related Impact on Sleep In Collection Expand

Protocol ID: 960301
Protocol Type: Module
Source: Coping with COVID-19: Impact on technology use, mobility, food security, depression and social isolation
View protocol: COVID-19 Related Impact on Sleep

Coronavirus Anxiety Scale In Collection Expand

Protocol ID: 960401
Protocol Type: Module
Source: Coronavirus Anxiety Scale (CAS)
View protocol: Coronavirus Anxiety Scale

Coping with COVID-19 In Collection Expand

Protocol ID: 960501
Protocol Type: Module
Source: COVID-19 Experiences (COVEX)
View protocol: Coping with COVID-19

Educational Impact Due to COVID-19 In Collection Expand

Protocol ID: 970101
Protocol Type: Module
Source: Coronavirus Tracking Survey of the Understanding America Survey (UAS)
View protocol: Educational Impact Due to COVID-19

Cyberbullying Due to Racial/Ethnic Bias In Collection Expand

Protocol ID: 970201
Protocol Type: Module
Source: The Coronavirus Racial Bias Scale (CRBS)
View protocol: Cyberbullying Due to Racial/Ethnic Bias

COVID-19 Related Household Finances In Collection Expand

Protocol ID: 980101
Protocol Type: Module
Source: RAND American Life Panel Impacts of COVID-19 Survey
View protocol: COVID-19 Related Household Finances

COVID-19 Related Employment Status In Collection Expand

Protocol ID: 980201
Protocol Type: Module
Source: COVID-19 Experiences (COVEX)
View protocol: COVID-19 Related Employment Status

Coronavirus Tracking Survey of the Understanding America Survey (UAS) In Library Expand

Protocol ID: 990201
Protocol Type: Full Instrument
Source: Center for Economic and Social Research
PDF: View Protocol PDF

COVID-19 Questionnaire - Adult Primary Version In Library Expand

Protocol ID: 990604
Protocol Type: Full Instrument
Source: Environmental influences on Child Health Outcomes
PDF: View Protocol PDF

COVID-19 Questionnaire - Child Parent-Report Version In Library Expand

Protocol ID: 990601
Protocol Type: Full Instrument
Source: Environmental influences on Child Health Outcomes
PDF: View Protocol PDF

COVID-19 Questionnaire - Child Self-Report Primary Version In Library Expand

Protocol ID: 990602
Protocol Type: Full Instrument
Source: Environmental influences on Child Health Outcomes
PDF: View Protocol PDF

COVID-19 Questionnaire - Child Self-Report Alternate Version In Library Expand

Protocol ID: 990603
Protocol Type: Full Instrument
Source: Environmental influences on Child Health Outcomes
PDF: View Protocol PDF

Novel Coronavirus (nCOV) Acute Respiratory Infection Clinical Characterisation Data Tool In Library Expand

Protocol ID: 991301
Protocol Type: Full Instrument
Source: World Health Organization
PDF: View Protocol PDF

CRISIS Surveys: Adult Self-Report Baseline Current Form In Library Expand

Protocol ID: 990801
Protocol Type: Full Instrument
Source: Coronavirus Health Impact Survey
PDF: View Protocol PDF

CRISIS Surveys: Youth Self-Report Baseline Current Form In Library Expand

Protocol ID: 990802
Protocol Type: Full Instrument
Source: Coronavirus Health Impact Survey
PDF: View Protocol PDF

CRISIS Surveys: Parent/Caregiver Self-Report Baseline Current Form In Library Expand

Protocol ID: 990803
Protocol Type: Full Instrument
Source: Coronavirus Health Impact Survey
PDF: View Protocol PDF

Coronavirus Perinatal Experiences Impact Survey (COPE-IS) In Library Expand

Protocol ID: 990901
Protocol Type: Full Instrument
Source: COVID-19 and Perinatal Experiences Study
PDF: View Protocol PDF

COVID-19 Household Pulse Questionnaire In Library Expand

Protocol ID: 990101
Protocol Type: Full Instrument
Source: US Census
PDF: View Protocol PDF

HERO Protective Equipment Survey In Library Expand

Protocol ID: 991001
Protocol Type: Full Instrument
Source: HERO
PDF: View Protocol PDF

HERO Daily Experience Index In Library Expand

Protocol ID: 991002
Protocol Type: Full Instrument
Source: HERO
PDF: View Protocol PDF

COVID-19 Community Response Survey In Library Expand

Protocol ID: 990501
Protocol Type: Full Instrument
Source: Johns Hopkins University
PDF: View Protocol PDF

ABCD COVID-19 Impact Measure - Parent In Library Expand

Protocol ID: 990701
Protocol Type: Full Instrument
Source: University of California San Diego
PDF: View Protocol PDF

ABCD COVID-19 Impact Measure - Youth In Library Expand

Protocol ID: 990702
Protocol Type: Full Instrument
Source: University of California San Diego
PDF: View Protocol PDF

MESA COVID-19 Questionnaire In Library Expand

Protocol ID: 991201
Protocol Type: Full Instrument
Source: Multi-Ethnic Study of Atherosclerosis
PDF: View Protocol PDF

RAND American Life Panel Survey: Impacts of COVID-19 In Library Expand

Protocol ID: 990301
Protocol Type: Full Instrument
Source: RAND Corporation
PDF: View Protocol PDF

All of Us Covid 19 Participant Experience Survey (COPE) In Library Expand

Protocol ID: 990401
Protocol Type: Full Instrument
Source: National Institutes of Health
PDF: View Protocol PDF

WHO Global COVID-19 Clinical Platform: Pregnancy Case Report Form (CRF) In Library Expand

Protocol ID: 991501
Protocol Type: Full Instrument
Source: World Health Organization
PDF: View Protocol PDF

Global COVID-19 Clinical Platform: Case Report Form for Suspected Cases
of Multisystem Inflammatory Syndrome (MIS) in
Children and Adolescents Temporally Related to COVID-19 In Library Expand

Protocol ID: 991401
Protocol Type: Full Instrument
Source: World Health Organization
PDF: View Protocol PDF

CDC Novel Coronavirus Case Report Form In Library Expand

Protocol ID: 991101
Protocol Type: Full Instrument
Source: Centers for Disease Control and Prevention
PDF: View Protocol PDF

C4R COVID-19 Questionnaire In Library Expand

Protocol ID: 991601
Protocol Type: Full Instrument
Source: Collaborative Cohort of Cohorts for COVID-19 Research
PDF: View Protocol PDF

COVID Symptom Tracker App: COPE (COronavirus Pandemic Epidemiology) Consortium IRB Tool Kit In Library Expand

Protocol ID: 991901
Protocol Type: Full Instrument
Source: Mongan Institute (Massachusetts General Hospital)
PDF: View Protocol PDF

Yale COVID-19 Recovery Study: Screening Questionnaire In Library Expand

Protocol ID: 991801
Protocol Type: Full Instrument
Source: Yale School of Medicine
PDF: View Protocol PDF

RADx-UP Common Data Elements In Library Expand

Protocol ID: 991701
Protocol Type: Full Instrument
Source: Duke University
PDF: View Protocol PDF

Select instruments from the list below to visually compare their similarity.