Changes in general practice use and costs with COVID-19 and telehealth initiatives: analysis ofAustralian whole-population linked data

Background In response to the COVID-19 pandemic, general practice in Australia underwent a rapid transition, including the roll-out of population-wide telehealth, with uncertain impacts on GP use and costs. Aim To describe how use and costs of GP services changed in 2020 - following the COVID-19 pandemic and introduction of telehealth - compared with 2019, and how this varied across population subgroups. Design and setting Linked-data analysis of whole-population data for Australia. Method Multi-Agency Data Integration Project data for similar to 19 million individuals from the 2016 census were linked to Medicare data for 2019-2020. Regression models were used to compare age-and sex-adjusted GP use and out-of-pocket costs over time, overall, and by sociodemographic characteristics. Results Of the population, 85.5% visited a GP in Q2-Q4 2020, compared with 89.5% in the same period of 2019. The mean number of face-to-face GP services per quarter declined, while telehealth services increased; overall use of GP services in Q4 2020 was similar to, or higher than, that of Q4 2019 for most groups. The proportion of total GP services by telehealth stabilised at 23.5% in Q4 2020. However, individuals aged 3-14 years, >= 70 years, and those with limited English proficiency used fewer GP services in 2020 compared with 2019, with a lower proportion by telehealth, compared with the rest of the population. Mean out-of-pocket costs per service were lower across all subgroups in 2020 compared with 2019. Conclusion The introduction of widespread telehealth maintained the use of GP services during the COVID-19 pandemic and minimised out-of-pocket costs, but not for all population subgroups.