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Home
Protocols
Browse Protocols Browse Tree
COVID-19
COVID-19 Research Collection COVID-19 Protocol Library COVID-19 Variable Compare Tool
Search
Advanced Search dbGaP Variable Search
Resources
Who's Using PhenX Publications & Presentations Archived PhenX Protocols PhenX Downloads
News
PhenX Newsletter Toolkit Use Statistics Notices of Funding Opportunities PhenX in the News COVID-19 Protocol Library Statistics Workshops
Help
PhenX YouTube Tutorials FAQ Glossary and Acronyms Investigator Guidance
About
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Major Studies Using Toolkit Protocols:

ABCD
All of Us
CONNECTS
ECHO
Gravity Project
H3Africa
NHANES
PATH Study
RECOVER

Data Collection Mode:

Bioassay
Clinical Examination
Interviewer-administered questionnaire
Medical records abstraction
Physical Measurement
Program Evaluation
Secondary Data Analysis
Self-administered questionnaire

Lifestage:

Infant
Toddler
Child
Adolescent
Adult
Senior
Pregnancy
Not applicable
Unavailable

Time to Complete:

<=15 minutes
>15 minutes

Translation:

Chinese
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Availability:

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Other:

Supplemental Information

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Use "quotation marks" to search for exact phrase
For high specificity, search with a single key term. For example, to find "Family history of diabetes among first degree relatives", search "family history" (with quotes)

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Searches through full text of measures and protocols; high-sensitivity, low-specificity
Returns more results than the Smart Search, but they are less specific
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Study Definitions

ABCD: Adolescent Brain Cognitive Development Study

CONNECTS: Collaborating Network of Networks for Evaluating COVID-19 and Therapeutic Strategies

ECHO: Environmental influences on Child Health Outcomes

H3Africa: Human Heredity and Health in Africa

NHANES: National Health and Nutrition Examination Survey

PATH: Population Assessment of Tobacco and Health Study

RECOVER: Researching COVID to Enhance Recovery

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May 27, 2026, Ver 49.1