The impact of deprivation on colorectal cancer‐stage distribution in a setting with high hospital bed density: A Japanese multilevel study

Abstract Background A methodology for determining the appropriate balance between medical access and combating poverty remains undetermined. To address the boundary conditions for exceedingly good medical access, this study examined whether the impact of deprivation on cancer stage distribution coul...

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Main Authors: Toshiaki Shibata, Daisuke Shinjo, Kiyohide Fushimi
Format: Article
Language:English
Published: Wiley 2024-07-01
Series:Cancer Medicine
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Online Access:https://doi.org/10.1002/cam4.70042
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author Toshiaki Shibata
Daisuke Shinjo
Kiyohide Fushimi
author_facet Toshiaki Shibata
Daisuke Shinjo
Kiyohide Fushimi
author_sort Toshiaki Shibata
collection DOAJ
description Abstract Background A methodology for determining the appropriate balance between medical access and combating poverty remains undetermined. To address the boundary conditions for exceedingly good medical access, this study examined whether the impact of deprivation on cancer stage distribution could be eliminated in Japan, which has the highest hospital bed density in the world. Methods A nationwide medical claims‐based database was used to evaluate the influence of municipality‐level hospital bed density and the postal code‐level areal deprivation index on cancer stage at diagnosis. Given the limited number of similar studies in Japan, we focused on colorectal cancer (CRC), for which disparities have been reported in a prefecture‐level study. Multilevel multivariate logistic regression models were used, with odds ratios (ORs) and 95% confidence intervals (CIs) adjusted for baseline and socioeconomic factors. Results Regardless of the early/advanced‐stage definitions, CRC consistently tended to be detected at more advanced stages in more deprived areas. In the analysis of stages 0–I/II–IV, the OR (95% CI) was 1.09 (1.05, 1.14) (p < 0.001). In the analyses of stages 0–I/II–IV and 0–II/III–IV, gradients were observed, and later detections were observed for more deprived segments. Hospital bed density was not significantly associated with the stage distribution. Conclusion The results indicate that inequalities in CRC detection due to deprivation persist even in the country with the highest hospital bed density worldwide, suggesting that poverty measures remain indispensable regardless of hospital bed access. Further investigation of various regions and cancers is required to develop a practical framework.
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spelling doaj-art-215e3b1fa4554b7f840b7706d70184a12024-12-19T12:33:09ZengWileyCancer Medicine2045-76342024-07-011314n/an/a10.1002/cam4.70042The impact of deprivation on colorectal cancer‐stage distribution in a setting with high hospital bed density: A Japanese multilevel studyToshiaki Shibata0Daisuke Shinjo1Kiyohide Fushimi2Department of Health Policy and Informatics Tokyo Medical and Dental University Graduate School Bunkyo‐ku Tokyo JapanDepartment of Health Policy and Informatics Tokyo Medical and Dental University Graduate School Bunkyo‐ku Tokyo JapanDepartment of Health Policy and Informatics Tokyo Medical and Dental University Graduate School Bunkyo‐ku Tokyo JapanAbstract Background A methodology for determining the appropriate balance between medical access and combating poverty remains undetermined. To address the boundary conditions for exceedingly good medical access, this study examined whether the impact of deprivation on cancer stage distribution could be eliminated in Japan, which has the highest hospital bed density in the world. Methods A nationwide medical claims‐based database was used to evaluate the influence of municipality‐level hospital bed density and the postal code‐level areal deprivation index on cancer stage at diagnosis. Given the limited number of similar studies in Japan, we focused on colorectal cancer (CRC), for which disparities have been reported in a prefecture‐level study. Multilevel multivariate logistic regression models were used, with odds ratios (ORs) and 95% confidence intervals (CIs) adjusted for baseline and socioeconomic factors. Results Regardless of the early/advanced‐stage definitions, CRC consistently tended to be detected at more advanced stages in more deprived areas. In the analysis of stages 0–I/II–IV, the OR (95% CI) was 1.09 (1.05, 1.14) (p < 0.001). In the analyses of stages 0–I/II–IV and 0–II/III–IV, gradients were observed, and later detections were observed for more deprived segments. Hospital bed density was not significantly associated with the stage distribution. Conclusion The results indicate that inequalities in CRC detection due to deprivation persist even in the country with the highest hospital bed density worldwide, suggesting that poverty measures remain indispensable regardless of hospital bed access. Further investigation of various regions and cancers is required to develop a practical framework.https://doi.org/10.1002/cam4.70042deprivationearly detectionhealth equalityhealthcare accessstage at diagnosis
spellingShingle Toshiaki Shibata
Daisuke Shinjo
Kiyohide Fushimi
The impact of deprivation on colorectal cancer‐stage distribution in a setting with high hospital bed density: A Japanese multilevel study
Cancer Medicine
deprivation
early detection
health equality
healthcare access
stage at diagnosis
title The impact of deprivation on colorectal cancer‐stage distribution in a setting with high hospital bed density: A Japanese multilevel study
title_full The impact of deprivation on colorectal cancer‐stage distribution in a setting with high hospital bed density: A Japanese multilevel study
title_fullStr The impact of deprivation on colorectal cancer‐stage distribution in a setting with high hospital bed density: A Japanese multilevel study
title_full_unstemmed The impact of deprivation on colorectal cancer‐stage distribution in a setting with high hospital bed density: A Japanese multilevel study
title_short The impact of deprivation on colorectal cancer‐stage distribution in a setting with high hospital bed density: A Japanese multilevel study
title_sort impact of deprivation on colorectal cancer stage distribution in a setting with high hospital bed density a japanese multilevel study
topic deprivation
early detection
health equality
healthcare access
stage at diagnosis
url https://doi.org/10.1002/cam4.70042
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