Table 2. Implementation features of the People’s Voice Survey.

Survey feature	Description
Survey mode	• The PVS was designed as a brief instrument to be delivered via telephone. Wave 1 implementation also included in-person and web-based delivery in some countries. Telephone-based data collection is faster and less costly than face-to-face surveys, which will promote repeated use of PVS over time. • The PVS can be delivered through other modes, including in person, online probability panels, online self-administration, and hybrid methods.
Sampling and sample size	• A minimum nationally representative sample of 1,000 respondents is recommended; a sample size of 2,000 is recommended to permit some stratified analysis. • Telephone surveys represent the adult population well in countries with minimum population telephone ownership of 80% (all but Ethiopia and Kenya among Wave 1 countries; supplemental in-person samples were added in these countries). • Random-digit dialing (RDD), known-list sampling, or sampling from an online probability panel was used. Details of this design are in Text A in S1 Appendix.
Data stewardship	• Data were cleaned and recoded in a comparable way across countries such that datasets could be easily appended for multicountry analyses and cross-national comparisons. • Code, including construction of a standard set of indicators for PVS survey items, will be available for public use. • Aggregate national data will be made available for use by policymakers, researchers, and other stakeholders as soon as available; deidentified, individual-level data will be made publicly available after a one-year embargo period following completion of data collection, analyses, and reporting by PVS collaborators.
Costs	• In Wave 1 countries, data collection took 1 to 2 months; costs per respondent ranged from $21.54 USD in India to $104.53 USD in Italy and Mexico. • Duration of data collection and costs varied by sample size, data collection partner, survey modes used, and other location-specific factors.
Collaborators	• Wave 1 countries (2022–2023) included: - Africa: Ethiopia, Kenya, Nigeria, South Africa; - Asia: Cambodia, China, India, Laos, South Korea; - Europe: Greece, Italy, Romania, United Kingdom; - North America: Mexico, United States; - South America: Argentina (Province of Mendoza only), Colombia, Peru, Uruguay. • All Wave 1 participants are research affiliates of the QuEST Network, including 2 countries identified by the World Health Organization Quality of Care and Patient Safety Office, and national partners from early stages of survey development. • The PVS is available for implementation in additional countries. All implementors must agree to shared principles for collaboration with the QuEST Network, including procedures for maintaining survey integrity and comparability as well as data sharing.