Protocol - Gender Identity

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A multi-tiered question asking participants to describe their gender identity. Multiple response options are provided along with open-ended self-defined options. It can be self-administered or interviewer administered.

Specific Instructions

While the original protocol is intended for computer administration, the PhenX Steering Committee acknowledges these items would be acceptable for use in paper-pencil questionnaires as well.


1a. What terms best express how you describe your gender identity? (Check all that apply)

[ ] Man

[ ] Woman

[ ] Non-binary

[ ] Transgender

[ ] None of these describe me, and I’d like to consider additional options

[ ] Prefer not to answer

Branching logic: If ‘non-binary’, ‘transgender,’ or ‘none of these describe me and I’d like to consider additional options’ selected:

1b. Are any of these a closer description to your gender identity?

[ ] Trans man/Transgender Man/FTM

[ ] Trans woman/Transgender Woman/MTF

[ ] Genderqueer

[ ] Genderfluid

[ ] Gender variant

[ ] Questioning or unsure of your gender identity

[ ] None of these describe me, and I want to specify __________________ 



Personnel and Training Required


Equipment Needs

The PhenX Steering Committee acknowledges these questions can be administered in a computerized or noncomputerized format (i.e., paper-and-pencil instrument). Computer software is necessary to develop computer-assisted instruments. The interviewer will require a laptop computer/handheld computer to administer a computer-assisted questionnaire.

Requirement CategoryRequired
Major equipment No
Specialized training No
Specialized requirements for biospecimen collection No
Average time of greater than 15 minutes in an unaffected individual No
Mode of Administration

Self-administered or interviewer-administered questionnaire


Adult, Senior


Adults aged 18 and older

Selection Rationale

This protocol was selected because it is both the most up-to-date protocol on gender identity in the literature and it is in use by the All of Us research program, which is a National Precision Medicine Cohort Program.


English, Other languages available at source

caDSR Common Data Elements (CDE) Person Gender Identity Code 6774025 CDE Browser
Derived Variables


Process and Review

Not applicable.

Protocol Name from Source

All of Us Research Program, Participant Provided Information (PPI), 2018


All of Us Research Program Participant Provided Information (PPI) Version: December 17, 2018

General References

The Precision Medicine Initiative Cohort Program – Building a Research Foundation for 21st Century Medicine Precision Medicine Initiative (PMI) Working Group Report to the Advisory Committee to the Director, NIH September 17, 2015

Collins, F. S. and Varmus, H. (2015). A New Initiative on Precision Medicine. N Engl J Med, 372, 793-795

National Research Council. Toward precision medicine: building a knowledge network for biomedical research and a new taxonomy of disease. Washington, DC: National Academies Press, 2011 ( http://www.nap.edu/catalog/13284/toward-precision-medicine-building-a-knowledge-network-for-biomedical-research).

The GenIUSS Group. (2014). Best Practices for Asking Questions to Identify Transgender and Other Gender Minority Respondents on Population-Based Surveys. J.L. Herman (Ed.). Los Angeles, CA: The Williams Institute.

Protocol ID


Export Variables
Variable Name Variable IDVariable DescriptiondbGaP Mapping
PX011801020100 Are any of these a closer description to more
your gender identity? show less
PX011801020200 Are any of these a closer description to more
your gender identity? Other show less
PX011801010000 What terms best express how you describe more
your gender identity? (Check all that apply) show less
Measure Name

Gender Identity

Release Date

June 4, 2019


One's concept of self as male, female, both, or neither. It describes how individuals perceive themselves and what they call themselves. One's gender identity can be the same or different from the sex assigned at birth.


To obtain a person’s self-report of current gender identity. 


gender identity, sex, transgender, Non-binary, Identity, LGBTQ, Demographics-Populations with HD

Measure Protocols
Protocol ID Protocol Name
11801 Gender Identity