Document Detail

The disproportionate risk burden of CT scanning on females and younger adults in Australia: a retrospective cohort study.
MedLine Citation:
PMID:  25269980     Owner:  NLM     Status:  In-Data-Review    
OBJECTIVES: To explore the interaction of computed tomography (CT) use, dose and radiation risk of Australian Medicare-funded CT scanning and the impact on cancer incidence and mortality.
METHODS: This retrospective cohort study used records of Medicare subsidised CT scans in Australia (2006/07 to 2011/12) and Australian CT dosimetry. The annual number, rate and adjusted likelihood of CT were determined for gender, age and examination type. Incident cancer and cancer-related mortality attributable to CT in Australia were estimated using lifetime attributable risk coefficients, dosimetry and scan numbers.
RESULTS: The number of CT scans increased by 36% from 2006/07 to 2011/12. Only patients aged 0-4 years did not present an increase in CT scanning rates. Females were 11% more likely to be scanned than males. Head, abdomen/pelvis and spine CT scans were the most likely areas scanned. Females were attributed 61% of both incident cancers and cancer-related mortality from 55% of scans performed. Patients aged 15-44 years were attributed 37% of incident cancers and 30% of cancer-related mortality from 26% of CT scans.
CONCLUSIONS: CT in Australia is increasing, including in groups at higher risk from ionising radiation. This presents a complex set of risk/benefit considerations for clinicians and policy makers.
David A Gibson; Rachael E Moorin; James Semmens; D'Arcy J Holman
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Australian and New Zealand journal of public health     Volume:  38     ISSN:  1753-6405     ISO Abbreviation:  Aust N Z J Public Health     Publication Date:  2014 Oct 
Date Detail:
Created Date:  2014-10-01     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9611095     Medline TA:  Aust N Z J Public Health     Country:  Australia    
Other Details:
Languages:  eng     Pagination:  441-8     Citation Subset:  IM    
Copyright Information:
© 2014 Public Health Association of Australia.
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