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Assessing a Digital Public Health Intervention: Survey Implementation and Analysis in Washington State Using an
Adam S Elder1, Andrea R Molino1, Rebecca A Hills1
1Department of Epidemiology, School of Public Health, University of Washington, Seattle, Washington, United States.
ACI Open
|July 29, 2026
Summary
Washington State
Area of Science:
- Digital Public Health
- Health Informatics
- Survey Research
Background:
- WA Verify, a QR code tool for sharing COVID-19 vaccine status, was launched in Washington State in November 2021.
- The tool enables mobile phone-based sharing of vaccination records.
Purpose of the Study:
- To gather unbiased data on Washington residents' experiences and opinions regarding digital public health tools.
- To specifically assess user experiences and perspectives on the WA Verify application.
Main Methods:
- A statewide survey was conducted using an address-based sampling method.
- Survey included questions on COVID-19, WA Verify, and technology use, mirroring state/national surveys for comparability.
- Demographic weighting was applied for future analyses.
Main Results:
- Respondent demographics largely mirrored Washington State's population, with higher reported educational attainment.
- Significant differences were observed in experiences and views on vaccination verification requirements and WA Verify awareness/usage across demographic groups.
- Awareness and use of WA Verify varied by race, education, age, and gender.
Conclusions:
- Broad interest in WA Verify suggests potential for increased adoption.
- Survey data provides a foundation for future public health and informatics interventions.
- Understanding user experiences is key to optimizing digital health tools.
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