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

ABSTRACT 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