Disease mapping: Geographic differences in population rates of interventional treatment for prostate cancer in Australia.

<h4>Background</h4>Treatment decisions for men diagnosed with prostate cancer depend on a range of clinical and patient characteristics such as disease stage, age, general health, risk of side effects and access. Associations between treatment patterns and area-level factors such as remo...

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Main Authors: Jessica K Cameron, Upeksha Chandrasiri, Jeremy Millar, Joanne F Aitken, Susanna Cramb, Jeff Dunn, Mark Frydenberg, Prem Rashid, Kerrie Mengersen, Suzanne K Chambers, Peter D Baade, David P Smith
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2023-01-01
Series:PLoS ONE
Online Access:https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0293954&type=printable
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author Jessica K Cameron
Upeksha Chandrasiri
Jeremy Millar
Joanne F Aitken
Susanna Cramb
Jeff Dunn
Mark Frydenberg
Prem Rashid
Kerrie Mengersen
Suzanne K Chambers
Peter D Baade
David P Smith
author_facet Jessica K Cameron
Upeksha Chandrasiri
Jeremy Millar
Joanne F Aitken
Susanna Cramb
Jeff Dunn
Mark Frydenberg
Prem Rashid
Kerrie Mengersen
Suzanne K Chambers
Peter D Baade
David P Smith
author_sort Jessica K Cameron
collection DOAJ
description <h4>Background</h4>Treatment decisions for men diagnosed with prostate cancer depend on a range of clinical and patient characteristics such as disease stage, age, general health, risk of side effects and access. Associations between treatment patterns and area-level factors such as remoteness and socioeconomic disadvantage have been observed in many countries.<h4>Objective</h4>To model spatial differences in interventional treatment rates for prostate cancer at high spatial resolution to inform policy and decision-making.<h4>Methods</h4>Hospital separations data for interventional treatments for prostate cancer (radical prostatectomy, low dose rate and high dose rate brachytherapy) for men aged 40 years and over were modelled using spatial models, generalised linear mixed models, maximised excess events tests and k-means statistical clustering.<h4>Results</h4>Geographic differences in population rates of interventional treatments were found (p<0.001). Separation rates for radical prostatectomy were lower in remote areas (12.2 per 10 000 person-years compared with 15.0-15.9 in regional and major city areas). Rates for all treatments decreased with increasing socioeconomic disadvantage (radical prostatectomy 19.1 /10 000 person-years in the most advantaged areas compared with 12.9 in the most disadvantaged areas). Three groups of similar areas were identified: those with higher rates of radical prostatectomy, those with higher rates of low dose brachytherapy, and those with low interventional treatment rates but higher rates of excess deaths. The most disadvantaged areas and remote areas tended to be in the latter group.<h4>Conclusions</h4>The geographic differences in treatment rates may partly reflect differences in patients' physical and financial access to treatments. Treatment rates also depend on diagnosis rates and thus reflect variation in investigation rates for prostate cancer and presentation of disease. Spatial variation in interventional treatments may aid identification of areas of under-treatment or over-treatment.
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spelling doaj.art-648396529dff44908a7f63e28417ce792023-12-12T05:34:34ZengPublic Library of Science (PLoS)PLoS ONE1932-62032023-01-011811e029395410.1371/journal.pone.0293954Disease mapping: Geographic differences in population rates of interventional treatment for prostate cancer in Australia.Jessica K CameronUpeksha ChandrasiriJeremy MillarJoanne F AitkenSusanna CrambJeff DunnMark FrydenbergPrem RashidKerrie MengersenSuzanne K ChambersPeter D BaadeDavid P Smith<h4>Background</h4>Treatment decisions for men diagnosed with prostate cancer depend on a range of clinical and patient characteristics such as disease stage, age, general health, risk of side effects and access. Associations between treatment patterns and area-level factors such as remoteness and socioeconomic disadvantage have been observed in many countries.<h4>Objective</h4>To model spatial differences in interventional treatment rates for prostate cancer at high spatial resolution to inform policy and decision-making.<h4>Methods</h4>Hospital separations data for interventional treatments for prostate cancer (radical prostatectomy, low dose rate and high dose rate brachytherapy) for men aged 40 years and over were modelled using spatial models, generalised linear mixed models, maximised excess events tests and k-means statistical clustering.<h4>Results</h4>Geographic differences in population rates of interventional treatments were found (p<0.001). Separation rates for radical prostatectomy were lower in remote areas (12.2 per 10 000 person-years compared with 15.0-15.9 in regional and major city areas). Rates for all treatments decreased with increasing socioeconomic disadvantage (radical prostatectomy 19.1 /10 000 person-years in the most advantaged areas compared with 12.9 in the most disadvantaged areas). Three groups of similar areas were identified: those with higher rates of radical prostatectomy, those with higher rates of low dose brachytherapy, and those with low interventional treatment rates but higher rates of excess deaths. The most disadvantaged areas and remote areas tended to be in the latter group.<h4>Conclusions</h4>The geographic differences in treatment rates may partly reflect differences in patients' physical and financial access to treatments. Treatment rates also depend on diagnosis rates and thus reflect variation in investigation rates for prostate cancer and presentation of disease. Spatial variation in interventional treatments may aid identification of areas of under-treatment or over-treatment.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0293954&type=printable
spellingShingle Jessica K Cameron
Upeksha Chandrasiri
Jeremy Millar
Joanne F Aitken
Susanna Cramb
Jeff Dunn
Mark Frydenberg
Prem Rashid
Kerrie Mengersen
Suzanne K Chambers
Peter D Baade
David P Smith
Disease mapping: Geographic differences in population rates of interventional treatment for prostate cancer in Australia.
PLoS ONE
title Disease mapping: Geographic differences in population rates of interventional treatment for prostate cancer in Australia.
title_full Disease mapping: Geographic differences in population rates of interventional treatment for prostate cancer in Australia.
title_fullStr Disease mapping: Geographic differences in population rates of interventional treatment for prostate cancer in Australia.
title_full_unstemmed Disease mapping: Geographic differences in population rates of interventional treatment for prostate cancer in Australia.
title_short Disease mapping: Geographic differences in population rates of interventional treatment for prostate cancer in Australia.
title_sort disease mapping geographic differences in population rates of interventional treatment for prostate cancer in australia
url https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0293954&type=printable
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