Practice Incentives Program Quality Improvement Measures: annual data update 2024–25

Influenza is a common disease of the respiratory tract which affects people of all ages. In 2023, influenza accounted for 19% of the total notifiable disease cases and has been the most common cause of notifiable disease hospitalisations in most years over the past decade, although this was highly variable from year to year. Influenza, which was the most common cause of notifiable disease deaths between 2014 and 2019, was recorded as the underlying cause of 305 deaths in 2022 (AIHW 2024h).  

A number of groups are at a higher risk of influenza and its complications. These groups experience higher rates of illness and death associated with influenza than the rest of the population, and adults aged ≥65 years are one of these vulnerable population groups. Therefore, annual influenza vaccination is strongly recommended for those aged ≥65 years (ATAGI 2025). 

The administration of the influenza vaccine to people at risk of complications of infection is the single most important measure in preventing or attenuating influenza infection and preventing mortality. There is evidence that influenza vaccination reduces hospitalisations from influenza and pneumonia, and all-cause mortality in adults aged ≥65 years of age (ATAGI 2025). While best practice guidelines recommend annual immunisation, a 15-month interval allows for cases when a client decides to receive a vaccine earlier than recommended (for example, from a pharmacy), or delay and wait for the release of an ‘enhanced’ vaccine (Department of Health 2020d).

Capture of results recorded outside of the general practice setting

Results arising from clinical intervention conducted outside of the service that are known and recorded by the practice are included in the measure. Where immunisation was provided elsewhere (for example, pharmacies and workplace programs) but are not known to the practice, this is not captured in the report. For example, this might be where the vaccination providers’ information systems may not be compatible with the clinical information system (CIS) of the client’s usual general practice.

Other sources of relevant data

There are other administrative data collections where the data on influenza immunisation are captured, for example, the Australian Immunisation Register (AIR).