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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 coronavirus disease 2019 (COVID-19) vaccination records.
Purpose of the Study:
- To gather an unbiased sample of Washington residents' experiences and opinions on digital public health interventions.
- To focus on user experiences with the WA Verify digital tool.
Main Methods:
- A statewide survey was conducted using an address-based sample.
- The survey assessed knowledge, attitudes, and practices regarding COVID-19, WA Verify, and technology.
- Demographic data were collected for weighted analyses and comparison with state and national data.
Main Results:
- Respondent demographics largely matched the Washington State population, with a notable difference in higher education attainment.
- Discrepancies were observed in reported experiences and views on vaccination verification requirements and WA Verify usage across different demographics.
- Awareness and use of WA Verify varied by race, education level, age, and gender.
Conclusions:
- Broad interest in WA Verify suggests potential for increased adoption.
- Survey data provide a foundation for future analyses to inform public health and informatics interventions.
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