Hospital admissions for injuries linked to extreme weather on the rise

Bushfire ready sign

The number of hospital admissions for injuries associated with extreme weather – such as heatwaves, bushfires and storms – has increased over the past decade, according to a new report by the Australian Institute of Health and Welfare (AIHW).


The report, Let’s talk about the weather: injuries related to extreme weather, reveals that in the decade from 2012 to 2022, extreme heat was responsible for most weather-related injuries and that bushfire-related injuries increased during El Niño years.

Extreme weather-related hospitalisations spiked at over 1,000 cases every three years, with the spikes becoming progressively higher. There were 1,027 injury hospitalisations in 2013–14, 1,033 in 2016–17 and 1,108 in 2019–20. In each of these three years, extreme heat had the biggest impact on hospitalisations and deaths. It accounted for 7,104 injury hospitalisations and 293 deaths in the 10-year period analysed.

“Evidence has shown that over the past three decades, there has been an increase in the frequency and severity of extreme weather events, such as extreme heat, bushfires, extreme cold, rain and storm-related events (including high rainfall, floods and cyclones). We are seeing this reflected in hospitalisations and deaths,” said AIHW spokesperson, Dr Heather Swanston.

“In the 10 years from 2012 to 2022, there were 9,119 hospitalisations for injury in Australia directly attributable to extreme weather. Over a similar period, from 2011 to 2021, there were 677 deaths due to extreme weather-related injury.”

With the exception of Tasmania, exposure to excessive natural heat was the most common cause leading to injury hospitalisation for all states and territories. From 2019 to 2022, there were 2,143 hospital admissions related to extreme heat, including 717 patients from Queensland, 410 from Victoria, 348 from NSW, 266 from South Australia, 267 from Western Australia, 73 from the Northern Territory, 23 from the ACT and 19 from Tasmania. The report also includes state and territory data on hospitalisations related to extreme cold, bushfires and storms.

During the 10-year period analysed, there were 773 injury hospitalisations and 242 deaths related to extreme cold. Extreme rain or storms accounted for 348 injury hospitalisations and 77 deaths. The number of injuries related to bushfires was higher in El Niño years.

The data doesn’t include injuries where patients were treated in hospital emergency departments and didn’t require admission to the hospital.

The report includes injuries that were directly attributable to weather-related events but does not include injuries that were indirectly related. For example, it doesn’t include injuries from road traffic accidents that occur due to wet weather since the primary cause of injury would be recorded as ‘transport’.

While hospital admissions for injuries associated with extreme weather make up a small proportion of all hospitalised injuries, the data provides a starting point for counting extreme weather-related injuries.

The Bureau of Meteorology has declared an El Niño is underway and is likely to continue until at least the end of February 2024, which in Australia includes a period of reduced rainfall, higher temperatures and increased bushfire danger.

The report outlines opportunities to develop weather-related injury surveillance systems.

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