Tap Water Intake and Perceptions in US Latinx Adults (TWIPLA)

The purpose of this exploratory cross-sectional investigation is to evaluate associations between tap water perceptions, water consumption behaviors, and hydration status in Latinx adults (18 - 65 y). The objective is to identify perceptual determinants that explain the associations between tap water avoidance and plain water intake and hydration status in Latinx adults.

Aim 1: Characterize the degree to which individual- and community-level factors uniquely predict the perception that tap water is not safe in Latinx adults.

Aim 2: Evaluate household income, education level, and US nativity as potential moderators of the associations between predictors and perceptions of tap water safety.

Aim 3: Evaluate the influence of tap water safety perceptions on plain water intake and 24-h hydration status, after adjustment for predictors of tap water safety perceptions, in a sub-sample of Latinx adults.

Study Overview

• Status: Completed
• Conditions: Dehydration

• Study Type: Observational
• Enrollment (Actual): 492

Contacts and Locations

Study Locations

• United States
  • Arizona
    • Phoenix, Arizona, United States, 85004
      • Interdisciplinary Science and Technology Building 8

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 65 years (Adult, Older Adult)
• Accepts Healthy Volunteers: N/A
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

Residents of Phoenix, Arizona

Description

Inclusion Criteria:

• Self-identify as Hispanic or Latinx
• English- and/or Spanish-speaking
• Interested in participating in both study phases
• Live in Phoenix, Arizona

Exclusion Criteria:

• Currently pregnant or breastfeeding
• Currently use diuretics
• Do not have access to a desktop, laptop, tablet, or smartphone
• Do not have internet access

Study Plan

How is the study designed?

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort
Latinx Adults 18 - 65 y

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Perception of tap water safety	This will be measured via the question "What is your level of agreement with the following statement: My tap water is safe to drink." Possible responses include strongly disagree, disagree, agree, or strongly agree.	1 day
Plain water intake (mL)		3-day average
24-h urine osmolality (mmol/kg)		1 day

Secondary Outcome Measures

Outcome Measure	Time Frame
24-h urine volume (mL)	1 day
Total water intake (mL)	3-day average

Collaborators and Investigators

• Sponsor: Arizona State University

Study record dates

Study Major Dates

• Study Start (Actual): September 1, 2021
• Primary Completion (Actual): May 1, 2022
• Study Completion (Actual): May 1, 2022

Study Registration Dates

• First Submitted: July 27, 2021
• First Submitted That Met QC Criteria: August 4, 2021
• First Posted (Actual): August 9, 2021

Study Record Updates

• Last Update Posted (Actual): September 9, 2022
• Last Update Submitted That Met QC Criteria: September 7, 2022
• Last Verified: September 1, 2022

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Pathologic Processes; Metabolic Diseases; Water-Electrolyte Imbalance; Dehydration
• Other Study ID Numbers: STUDY00014055

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No