RT Journal Article SR Electronic T1 Diagnostic accuracy of an app-guided, self-administered test for influenza among individuals presenting to general practice with influenza-like illness: study protocol JF BMJ Open JO BMJ Open FD British Medical Journal Publishing Group SP e036298 DO 10.1136/bmjopen-2019-036298 VO 10 IS 11 A1 Lyon, Victoria A1 Zigman Suchsland, Monica A1 Chilver, Monique A1 Stocks, Nigel A1 Lutz, Barry A1 Su, Philip A1 Cooper, Shawna A1 Park, Chunjong A1 Lavitt, Libby Rose A1 Mariakakis, Alex A1 Patel, Shwetak A1 Graham, Chelsey A1 Rieder, Mark A1 LeRouge, Cynthia A1 Thompson, Matthew YR 2020 UL http://bmjopen.bmj.com/content/10/11/e036298.abstract AB Introduction Diagnostic tests for influenza in Australia are currently only authorised for use in clinical settings. At-home diagnostic testing for influenza could reduce the need for patient contact with healthcare services, which potentially could contribute to symptomatic improvement and reduced spread of influenza. We aim to determine the accuracy of an app-guided nasal self-swab combined with a lateral flow immunoassay for influenza conducted by individuals with influenza-like illness (ILI).Methods and analysis Adults (≥18 years) presenting with ILI will be recruited by general practitioners (GP) participating in Australian Sentinel Practices Research Network. Eligible participants will have a nasal swab obtained by their GP for verification of influenza A/B status using reverse transcription polymerase chain reaction (RT-PCR) test at an accredited laboratory. Participants will receive an influenza test kit and will download an app that collects self-reported symptoms and influenza risk factors, then instructs them in obtaining a low-nasal self-swab, running a QuickVue influenza A+B lateral flow immunoassay (Quidel Corporation) and interpreting the results. Participants will also interpret an enhanced image of the test strip in the app. The primary outcome will be the accuracy of participants’ test interpretation compared with the laboratory RT-PCR reference standard. Secondary analyses will include accuracy of the enhanced test strip image, accuracy of an automatic test strip reader algorithm and validation of prediction rules for influenza based on self-reported symptoms. A post-test survey will be used to obtain participant feedback on self-test procedures.Ethics and dissemination The study was approved by the Human Research and Ethic Committee (HREC) at the University of Adelaide (H-2019-116). Protocol details and any amendments will be reported to https://www.tga.gov.au/. Results will be published in the peer-reviewed literature, and shared with stakeholders in the primary care and diagnostics communities.Trial registration number Australia New Zealand Clinical Trial Registry (U1111-1237-0688).