ObjectivesThe present study explored public’s willingness to use COVID-19 immunity certificates across six different domestic scenarios.DesignCross-sectional online survey.SettingUK representative survey conducted on 3 August 2021.Participants534 UK residents over 18 years old.InterventionsParticipants replied to the same set of questions.Primary and secondary outcome measuresThe primary outcome measure was willingness to use immunity certificates across three different domestic settings: (1) visiting the general practitioner (GP) for a non-urgent health issue; (2) dining in a restaurant and (3) attending a performance in a theatre. For each setting two options, one prioritising convenience (option A) and the other privacy (option B), were offered. Our secondary outcome measures were computed indices from items adapted from the Health Belief Model; attitudes towards sharing immunity status with service providers; prior to COVID-19 lifestyle. In addition, we recorded data about respondents’ sociodemographic characteristics.ResultsRespondents were more willing to use immunity certificates that prioritised convenience (92%), rather than privacy (76%), when visiting their GP . However, privacy was more favourable in the other two settings (dining in a restaurant (84%) and going to a theatre (83%)) compared with convenience (38% and 39% respectively). Personal beliefs about COVID-19 and immunity certificates were associated with variations in willingness to use these across all scenarios. No variations were observed across sociodemographics and lifestyle.ConclusionsThe findings of this survey suggest that there is not one-size-fits-all solution for designing immunity certificates. Immunity certificates are complex sociotechnical systems, any attempt to implement these for domestic use should be tailored to different settings and user needs. The design of certification services requires a more evidence-based approach and further research is needed to understand how different settings, design elements (like convenience or privacy) and personal beliefs about the pandemic should inform their design.

The present short communication paper describes the methodological approach of applying the Health Belief Model to the use COVID-19 immunity certificates in the UK. We designed an online survey including an adaptation of the following Health Belief Model constructs: perceived COVID-19 susceptibility, perceived COVID-19 severity, perceived benefits of using immunity certificates, perceived barriers from using immunity certificates, perceived severity of not using immunity certificates, and perceived vaccination views. The online cross-sectional survey conducted on the 3rd of August 2021 gathered responses from 534 participants aged 18 and older, representative of the UK population in terms of gender, age, and ethnicity.

Outcomes, which are the result state or condition from a process or intervention, are essential elements of healthcare system design and an important indicator of performance. They are included in well-known system analysis frameworks such as the Systems Engineering Initiative for Patient Safety (SEIPS) and Cognitive Work Analysis (CWA). However, fewer practical approaches exist for understanding and communicating interactions among healthcare outcomes. This study applies a novel mapping method as a practical approach to collect, aggregate and visualise interrelations among multiple healthcare outcomes. Graphic facilitation mapping sessions with eleven healthcare providers and ten patients with chronic conditions were conducted. Participants created outcome interrelationship maps following a six-step process. Two outcome-based network visualisations were synthesised using network analysis. This outcomebased approach advances how we frame healthcare systems, focussing on accommodating multiple stakeholders' visions, understanding interrelations, and defining trade-offs. This practical approach may complement frameworks such as SEIPS and CWA.

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