Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Longitudinal Research

Longitudinal Research

Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

A Comparison of Post-Traumatic Stress and Depressive Symptoms by Suicidal Ideation Among Black Transgender Women.

Research in nursing & health·2026

Same author

Ogunbajo et al. Respond.

American journal of public health·2026

Same author

Overcoming the HIV Pre-Exposure Prophylaxis Uptake Barrier With A Health Action Process Approach and Conditional Economic Incentives Among Men Who Have Sex With Men in 3 Chinese Cities: Protocol for a Randomized Controlled Trial.

JMIR research protocols·2026

Same author

Experienced and Anticipated Intersectional Violence and Psychological Distress Symptom Severity Among Black Transgender Women in the United States of America.

Healthcare (Basel, Switzerland)·2026

Same author

Formative Research to Identify Contributors to Risky Drinking and Adapt an Alcohol Reduction Intervention Among Young Adults Vulnerable to HIV: Qualitative Focus Group Study.

JMIR formative research·2026

Same author

Effects of Integrated Community-Based Care and Group Microfinance on Antiretroviral Therapy Adherence Among Adults Living With HIV in Western Kenya.

Journal of the International Association of Providers of AIDS Care·2026

Search research articles

Related Experiment Video

Updated: Jun 11, 2025

Establishment of Rat Models Mimicking Gender-affirming Hormone Therapies

Establishment of Rat Models Mimicking Gender-affirming Hormone Therapies

Published on: January 10, 2025

Using stated preference methods to design gender-affirming long-acting PrEP programs for transgender and nonbinary

A Restar^1,2,3, M G Wilson-Barthes⁴, E Dusic⁵

¹Departments of Epidemiology, and Health Systems and Population Health, University of Washington School of Public Health, Seattle, WA, USA. restar@uw.edu.

Scientific Reports

|October 8, 2024

Summary

Transgender adults prefer long-acting injectable HIV pre-exposure prophylaxis (LA-PrEP) when integrated with gender-affirming care, including hormone therapy. This integration is key for uptake of HIV prevention methods among this population.

More Related Videos

Combining Behavioral Endocrinology and Experimental Economics: Testosterone and Social Decision Making

Combining Behavioral Endocrinology and Experimental Economics: Testosterone and Social Decision Making

Published on: March 2, 2011

A Novel Method for Involving Women of Color at High Risk for Preterm Birth in Research Priority Setting

A Novel Method for Involving Women of Color at High Risk for Preterm Birth in Research Priority Setting

Published on: January 12, 2018

Related Experiment Videos

Last Updated: Jun 11, 2025

Establishment of Rat Models Mimicking Gender-affirming Hormone Therapies

Establishment of Rat Models Mimicking Gender-affirming Hormone Therapies

Published on: January 10, 2025

Combining Behavioral Endocrinology and Experimental Economics: Testosterone and Social Decision Making

Combining Behavioral Endocrinology and Experimental Economics: Testosterone and Social Decision Making

Published on: March 2, 2011

A Novel Method for Involving Women of Color at High Risk for Preterm Birth in Research Priority Setting

A Novel Method for Involving Women of Color at High Risk for Preterm Birth in Research Priority Setting

Published on: January 12, 2018

Area of Science:

Public Health
HIV Prevention
Health Services Research

Background:

Transgender and nonbinary (trans) adults face disproportionately high HIV risk.
Integrating HIV prevention with gender-affirming care is a promising strategy to address this disparity.

Purpose of the Study:

To identify key programming factors influencing trans adults' decisions to use injectable long-acting HIV pre-exposure prophylaxis (LA-PrEP).
To inform the development of effective LA-PrEP programs tailored to the needs of trans adults.

Main Methods:

A discrete choice experiment was conducted with 366 trans adults in Washington state.
Participants evaluated hypothetical LA-PrEP programs based on various attributes.
Data were analyzed using a mixed rank-ordered logit model.

Main Results:

Respondents strongly preferred receiving LA-PrEP from a gender-affirming care provider alongside hormone therapy.
A preference for 12-month protection and upper arm injections was observed.
No significant preference for specific health facility types was identified.

Conclusions:

Integrating LA-PrEP within gender-affirming health systems, including hormone therapy, is highly preferred by trans adults.
Choice-based design experiments are valuable for optimizing LA-PrEP programming for this population.