NCT03889561

Brief Summary

Sugar-sweetened beverages (SSBs) are a major caloric source and the largest source of added sugars in the American diet. While many cities around the country have adopted anti-SSB policies such as soda taxes to reduce SSB intake, there has yet to be any studies to evaluate if the effects of these taxes, coupled with increased water access and promotion effort can lead to decreased sugar sweetened beverage consumption and increased water consumption. This quasi-experimental study evaluates how implementation of SSB taxes, installation of new water stations, and a multicultural water promotion campaign in parks impacts beverage intake in these settings as compared to soda taxes alone.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,038

participants targeted

Target at P75+ for not_applicable obesity

Timeline
Completed

Started Apr 2016

Typical duration for not_applicable obesity

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 15, 2016

Completed
2.9 years until next milestone

First Submitted

Initial submission to the registry

March 22, 2019

Completed
4 days until next milestone

First Posted

Study publicly available on registry

March 26, 2019

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2019

Completed
Last Updated

April 27, 2023

Status Verified

April 1, 2023

Enrollment Period

3.7 years

First QC Date

March 22, 2019

Last Update Submit

April 25, 2023

Conditions

Keywords

WaterParksPublic spacesSugar-sweetened beverages

Outcome Measures

Primary Outcomes (1)

  • Change in beverage consumption

    Changes in beverage consumption will be measured through site observations to tally the proportion of visitors drinking water and SSBs in parks.

    Visitors in each park will be observed during four one-hour intervals for a maximum of four hours if they visit the park for that duration of time.

Study Arms (2)

Improved Water Access, Promotion, and SSB taxes

EXPERIMENTAL

Intervention parks will receive installation of water stations, multicultural water promotion campaign, and SSB taxes

Behavioral: Drink Tap

Control

NO INTERVENTION

SSB taxes

Interventions

Drink TapBEHAVIORAL

The Drink Tap intervention consists of increased access to safe and appealing drinking water, multicultural water promotion, and soda taxes.

Improved Water Access, Promotion, and SSB taxes

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Park visitors within a defined geographic boundary

You may not qualify if:

  • Park visitors outside a defined geographic boundary

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Stanford

Stanford, California, 94305-5119, United States

Location

MeSH Terms

Conditions

Obesity

Condition Hierarchy (Ancestors)

OverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Anisha Patel, MD,MSPH

    Stanford University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

March 22, 2019

First Posted

March 26, 2019

Study Start

April 15, 2016

Primary Completion

December 31, 2019

Study Completion

December 31, 2019

Last Updated

April 27, 2023

Record last verified: 2023-04

Data Sharing

IPD Sharing
Will not share

Locations