The disproportionate risk burden of CT scanning on females and younger adults in Australia: a retrospective cohort study
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 2...
| Main Authors: | , , , |
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| Format: | Journal Article |
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Blackwell Publishing
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/37823 |
| _version_ | 1848755153420681216 |
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| author | Gibson, D. Moorin, Rachael Semmens, James Holman, C D. |
| author_facet | Gibson, D. Moorin, Rachael Semmens, James Holman, C D. |
| author_sort | Gibson, D. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-14T08:51:47Z |
| format | Journal Article |
| id | curtin-20.500.11937-37823 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:51:47Z |
| publishDate | 2014 |
| publisher | Blackwell Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-378232017-09-13T14:27:25Z The disproportionate risk burden of CT scanning on females and younger adults in Australia: a retrospective cohort study Gibson, D. Moorin, Rachael Semmens, James Holman, C D. service utilisation computed tomography cancer risk 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. 2014 Journal Article http://hdl.handle.net/20.500.11937/37823 10.1111/1753-6405.12278 Blackwell Publishing unknown |
| spellingShingle | service utilisation computed tomography cancer risk Gibson, D. Moorin, Rachael Semmens, James Holman, C D. The disproportionate risk burden of CT scanning on females and younger adults in Australia: a retrospective cohort study |
| title | The disproportionate risk burden of CT scanning on females and younger adults in Australia: a retrospective cohort study |
| title_full | The disproportionate risk burden of CT scanning on females and younger adults in Australia: a retrospective cohort study |
| title_fullStr | The disproportionate risk burden of CT scanning on females and younger adults in Australia: a retrospective cohort study |
| title_full_unstemmed | The disproportionate risk burden of CT scanning on females and younger adults in Australia: a retrospective cohort study |
| title_short | The disproportionate risk burden of CT scanning on females and younger adults in Australia: a retrospective cohort study |
| title_sort | disproportionate risk burden of ct scanning on females and younger adults in australia: a retrospective cohort study |
| topic | service utilisation computed tomography cancer risk |
| url | http://hdl.handle.net/20.500.11937/37823 |