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Factors driving CT utilisation in tertiary hospitals: a decomposition analysis using linked administrative data in Western Australia.

Ninh Thi HaSusannah MaxwellMax K BulsaraJenny DoustDonald McrobbiePeter O'LearyJohn SlavotinekRachael E Moorin
Published in: BMJ open (2021)
Our study highlights potential improvements in practice towards reducing medical radiation exposure in certain high risk population. Since changes in the relative probability of having a CT scan (representing changes in scope) rather than changes in the distribution of the patient characteristics (representing changes in need) explained a major proportion of the growth in CT use, this warrants more in-depth investigations in clinical practices to better inform health policies promoting appropriate use of diagnostic imaging tests.
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