Evaluating Pilot Implementation of 'PenCS Flu Topbar' App in Medical Practices to Improve National Immunisation Program–Funded Seasonal Influenza Vaccination in Central Queensland, Australia.

Background: The 'PenCS Flu Topbar' app was deployed in Central Queensland (CQ), Australia, medical practices through a pilot programme in March 2021. Methods: We evaluated the app's user experience and examined whether the introduction of 'PenCS Flu Topbar' in medical practices could improve the coverage of NIP‐funded influenza vaccinations. We conducted a mixed‐method study including a qualitative analysis of in‐depth interviews with key end‐users and a quantitative analysis of influenza vaccine administrative data. Results: 'PenCS Flu Topbar' app users reported positive experiences identifying patients eligible for NIP‐funded seasonal influenza vaccination. A total of 3606 NIP‐funded influenza vaccinations was administered in the eight intervention practices, 14% higher than the eight control practices. NIP‐funded vaccination coverage within practices was significantly higher in the intervention practices (31.2%) than in the control practices (27.3%) (absolute difference: 3.9%; 95% CI: 2.9%–5.0%; p < 0.001). The coverage was substantially higher in Aboriginal and Torres Strait Islander people aged more than 6 months, pregnant women and children aged 6 months to less than 5 years for the practices where the app was introduced when compared to control practices: incidence rate ratio (IRR) 2.4 (95% CI: 1.8–3.2), IRR 2.7 (95% CI: 1.8–4.2) and IRR 2.3 (1.8–2.9) times higher, respectively. Conclusions: Our evaluation indicated that the 'PenCS Flu Topbar' app is useful for identifying the patients eligible for NIP‐funded influenza vaccination and is likely to increase NIP‐funded influenza vaccine coverage in the eligible populations. Future impact evaluation including a greater number of practices and a wider geographical area is essential. [ABSTRACT FROM AUTHOR]