UrbanHEAT: Health Behaviors, Outcomes, and Disparities in Individually Experienced Temperature Across an Urban Community

NCT ID: NCT06778252

Last Updated: 2025-07-31

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

WITHDRAWN

Study Classification

OBSERVATIONAL

Study Start Date

2025-07-22

Study Completion Date

2025-07-29

Brief Summary

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We are conducting a research study to learn about how individuals living in Washington, DC perceive and experience temperature.

Participation in this study will include:

2 remote visits over the phone and/or computer (these will each last about1.5 to 2 hours)

* During the remote visits, you will be asked to respond to a series of surveys, so that we can learn about your life, behaviors, and health

2 weeks of data collection where you will be asked to:
* Wear monitoring devices

* These will collect information on your location and physical activity
* We will ask you to wear the monitors on a belt around your waist all day every day during these 2 weeks of data collection.
* All of the monitors will be sent to you in the mail.
* Leave a temperature tracker near where you sleep to measure the temperature of your environment.
* Use a phone app

* We will also send you questions through the phone app that will ask about your stress level, sleep duration, sleep quality, and how you feel about the current temperature.

Risks of participating in this study are minimal. They include the inconvenience of wearing the monitors and the possibility of a breach of your confidentiality. We are collecting personal information about you and the location monitor will collect information about where you spend your time. We will take every precaution in order to safeguard the data that you provide, including limiting who has access to it, storing it safely, and removing the capacity to identify you individually, as much as possible.

You will receive no immediate benefits from participating in this study. We hope what we learn will help us to develop policies and programs to help keep urban populations safe during increasingly warm summer temperatures.

You are eligible for this study if you are 18 years of age or older, live in Washington, DC, can read and write in English, and have access to a smartphone that you can use for the 2 week data collection period....

Detailed Description

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Study Description:

This pilot study will test measures for cardiometabolic behaviors and outcomes (e.g., physical activity, sedentary behavior, stress, sleep quality, sleep quantity) and individually experienced temperature with intensive longitudinal data collected via wearable devices and smart phone-based ecological momentary assessment. The primary hypothesis is that there are associations between individually experienced temperature and the identified behaviors and outcomes.

Objectives:

Primary:

To explore within and between-person associations between individually experienced temperature and cardiometabolic risk behaviors and outcomes.

Secondary:

Aim 1: Explore disparities in individually experienced temperature based on race, ethnicity, socioeconomic factors, sex, and age.

Aim 2: Explore multilevel determinants of individually experienced temperature: neighborhood environment (residential and activity space), home, workplace, and preferences

Endpoints:

Primary:

* Physical Activity
* Sedentary behavior
* Stress/mental well-being
* Sleep quantity
* Sleep quality

Secondary:

* Daily mean individually experienced temperature
* Daily maximum individually experienced temperature
* Daily degree minutes above threshold
* Longest daily exposure period

Conditions

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Temperature

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Healthy Volunteers

Healthy Volunteers with home address in Washington, DC.

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

In order to be eligible to participate in this study, an individual must meet all of the following criteria:

* Stated willingness to comply with all study procedures and availability for the duration of the study.
* Ability of subject to understand and the willingness to sign a written informed consent document.
* Aged at least 18 years.
* Ability to read and write in English. This is justified by the novelty of the survey instruments (e.g., momentary thermal comfort conducted in an ecological momentary assessment context).
* Home address in Washington, DC
* Availability of a smart phone on which Metricwire Ecological Momentary Assessment software can be downloaded and used during the 14-day data collection period.

Exclusion Criteria

An individual who meets any of the following criteria will be excluded from participation in this study:

* Requirement of hospitalization at enrollment.
* Inability to consent.
* Unwillingness to comply with study procedures.
Minimum Eligible Age

18 Years

Maximum Eligible Age

115 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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National Institute on Minority Health and Health Disparities (NIMHD)

NIH

Sponsor Role collaborator

National Institute of Nursing Research (NINR)

NIH

Sponsor Role collaborator

National Institutes of Health Clinical Center (CC)

NIH

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Kelly K Jones

Role: PRINCIPAL_INVESTIGATOR

National Institute on Minority Health and Health Disparities (NIMHD)

Locations

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National Institute on Minority Health and Health Disparities

Bethesda, Maryland, United States

Site Status

Countries

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United States

References

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Beyer KMM, Szabo A, Hoormann K, Stolley M. Time spent outdoors, activity levels, and chronic disease among American adults. J Behav Med. 2018 Aug;41(4):494-503. doi: 10.1007/s10865-018-9911-1. Epub 2018 Jan 30.

Reference Type BACKGROUND
PMID: 29383535 (View on PubMed)

Tran Trong T, Riera F, Rinaldi K, Briki W, Hue O. Ingestion of a cold temperature/menthol beverage increases outdoor exercise performance in a hot, humid environment. PLoS One. 2015 Apr 9;10(4):e0123815. doi: 10.1371/journal.pone.0123815. eCollection 2015.

Reference Type BACKGROUND
PMID: 25856401 (View on PubMed)

Kuras ER, Richardson MB, Calkins MM, Ebi KL, Hess JJ, Kintziger KW, Jagger MA, Middel A, Scott AA, Spector JT, Uejio CK, Vanos JK, Zaitchik BF, Gohlke JM, Hondula DM. Opportunities and Challenges for Personal Heat Exposure Research. Environ Health Perspect. 2017 Aug 1;125(8):085001. doi: 10.1289/EHP556.

Reference Type BACKGROUND
PMID: 28796630 (View on PubMed)

McGregor GR, Vanos JK. Heat: a primer for public health researchers. Public Health. 2018 Aug;161:138-146. doi: 10.1016/j.puhe.2017.11.005. Epub 2017 Dec 28.

Reference Type BACKGROUND
PMID: 29290376 (View on PubMed)

Song X, Wang S, Hu Y, Yue M, Zhang T, Liu Y, Tian J, Shang K. Impact of ambient temperature on morbidity and mortality: An overview of reviews. Sci Total Environ. 2017 May 15;586:241-254. doi: 10.1016/j.scitotenv.2017.01.212. Epub 2017 Feb 7.

Reference Type BACKGROUND
PMID: 28187945 (View on PubMed)

Waugh DW, He Z, Zaitchik B, Peng RD, Diette GB, Hansel NN, Matsui EC, Breysse PN, Breysse DH, Koehler K, Williams D, McCormack MC. Indoor heat exposure in Baltimore: does outdoor temperature matter? Int J Biometeorol. 2021 Apr;65(4):479-488. doi: 10.1007/s00484-020-02036-2. Epub 2020 Oct 21.

Reference Type BACKGROUND
PMID: 33089367 (View on PubMed)

White-Newsome JL, Sanchez BN, Jolliet O, Zhang Z, Parker EA, Dvonch JT, O'Neill MS. Climate change and health: indoor heat exposure in vulnerable populations. Environ Res. 2012 Jan;112:20-7. doi: 10.1016/j.envres.2011.10.008. Epub 2011 Nov 8.

Reference Type BACKGROUND
PMID: 22071034 (View on PubMed)

Xiang J, Bi P, Pisaniello D, Hansen A. Health impacts of workplace heat exposure: an epidemiological review. Ind Health. 2014;52(2):91-101. doi: 10.2486/indhealth.2012-0145. Epub 2013 Dec 21.

Reference Type BACKGROUND
PMID: 24366537 (View on PubMed)

Zuurbier M, van Loenhout JAF, le Grand A, Greven F, Duijm F, Hoek G. Street temperature and building characteristics as determinants of indoor heat exposure. Sci Total Environ. 2021 Apr 20;766:144376. doi: 10.1016/j.scitotenv.2020.144376. Epub 2020 Dec 26.

Reference Type BACKGROUND
PMID: 33421789 (View on PubMed)

Other Identifiers

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002097-MD

Identifier Type: -

Identifier Source: secondary_id

10002097

Identifier Type: -

Identifier Source: org_study_id

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