Geodemographic analysis of socioeconomic area disparities in tuberculosis incidence in Osaka City, Japan

Abstract Regional disparities in the incidence of tuberculosis (TB) pose several challenges to effective TB control. This study aimed to investigate such disparities in Osaka City, Japan, by analyzing the relationship between TB incidence and residents’ socioeconomic indicators. Using 42 indicators...

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Main Authors: Kaori Yamamoto, Shouhei Takeuchi, Tomoki Nakaya, Naoya Fujiwara, Junji Seto, Jun Komukai, Yuko Tsuda, Hideki Yoshida, Takayuki Wada
Format: Article
Language:English
Published: Nature Portfolio 2025-05-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-99711-4
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author Kaori Yamamoto
Shouhei Takeuchi
Tomoki Nakaya
Naoya Fujiwara
Junji Seto
Jun Komukai
Yuko Tsuda
Hideki Yoshida
Takayuki Wada
author_facet Kaori Yamamoto
Shouhei Takeuchi
Tomoki Nakaya
Naoya Fujiwara
Junji Seto
Jun Komukai
Yuko Tsuda
Hideki Yoshida
Takayuki Wada
author_sort Kaori Yamamoto
collection DOAJ
description Abstract Regional disparities in the incidence of tuberculosis (TB) pose several challenges to effective TB control. This study aimed to investigate such disparities in Osaka City, Japan, by analyzing the relationship between TB incidence and residents’ socioeconomic indicators. Using 42 indicators from the 2010 population census, the city was clustered into 15 social areas through a factor analysis, and TB incidence during 2012–2016 was compared across the areas in 4,852 cases. Two geographically adjacent areas (Area D and O) exhibited significantly higher TB rates, each with distinct social characteristics. Area D consisted of a high proportion of young, single individuals working in the service sector as well as foreigners. Area O included a high proportion of day laborers, secondary industry workers, and individuals with lower educational levels. TB occurred more frequently in foreign-born patients aged < 60 years, and it was detected during treatment for other diseases in Area D compared with other areas. However, a high proportion of retreated patients aged 40–79 years, with a shorter delay in TB detection, was observed in Area O. The variations in this study provide insights into the relationship between socioeconomic indicators and regional disparities in TB incidence in local settings.
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spelling doaj-art-58beb1c7b76c42dd8dbe4d8fa6d24c192025-08-20T03:09:35ZengNature PortfolioScientific Reports2045-23222025-05-011511910.1038/s41598-025-99711-4Geodemographic analysis of socioeconomic area disparities in tuberculosis incidence in Osaka City, JapanKaori Yamamoto0Shouhei Takeuchi1Tomoki Nakaya2Naoya Fujiwara3Junji Seto4Jun Komukai5Yuko Tsuda6Hideki Yoshida7Takayuki Wada8Division of Microbiology, Osaka Institute of Public HealthFaculty of Nursing and Nutrition, University of NagasakiGraduate School of Environmental Studies, Tohoku UniversityGraduate School of Information Sciences, Tohoku UniversityDepartment of Microbiology, Yamagata Prefectural Institute of Public HealthDepartment of Infectious Disease Control, Osaka City Public Health OfficeDepartment of Infectious Disease Control, Osaka City Public Health OfficeOsaka City Health BureauGraduate School of Human Life and Ecology, Osaka Metropolitan UniversityAbstract Regional disparities in the incidence of tuberculosis (TB) pose several challenges to effective TB control. This study aimed to investigate such disparities in Osaka City, Japan, by analyzing the relationship between TB incidence and residents’ socioeconomic indicators. Using 42 indicators from the 2010 population census, the city was clustered into 15 social areas through a factor analysis, and TB incidence during 2012–2016 was compared across the areas in 4,852 cases. Two geographically adjacent areas (Area D and O) exhibited significantly higher TB rates, each with distinct social characteristics. Area D consisted of a high proportion of young, single individuals working in the service sector as well as foreigners. Area O included a high proportion of day laborers, secondary industry workers, and individuals with lower educational levels. TB occurred more frequently in foreign-born patients aged < 60 years, and it was detected during treatment for other diseases in Area D compared with other areas. However, a high proportion of retreated patients aged 40–79 years, with a shorter delay in TB detection, was observed in Area O. The variations in this study provide insights into the relationship between socioeconomic indicators and regional disparities in TB incidence in local settings.https://doi.org/10.1038/s41598-025-99711-4GeodemographicsTuberculosisPublic health
spellingShingle Kaori Yamamoto
Shouhei Takeuchi
Tomoki Nakaya
Naoya Fujiwara
Junji Seto
Jun Komukai
Yuko Tsuda
Hideki Yoshida
Takayuki Wada
Geodemographic analysis of socioeconomic area disparities in tuberculosis incidence in Osaka City, Japan
Scientific Reports
Geodemographics
Tuberculosis
Public health
title Geodemographic analysis of socioeconomic area disparities in tuberculosis incidence in Osaka City, Japan
title_full Geodemographic analysis of socioeconomic area disparities in tuberculosis incidence in Osaka City, Japan
title_fullStr Geodemographic analysis of socioeconomic area disparities in tuberculosis incidence in Osaka City, Japan
title_full_unstemmed Geodemographic analysis of socioeconomic area disparities in tuberculosis incidence in Osaka City, Japan
title_short Geodemographic analysis of socioeconomic area disparities in tuberculosis incidence in Osaka City, Japan
title_sort geodemographic analysis of socioeconomic area disparities in tuberculosis incidence in osaka city japan
topic Geodemographics
Tuberculosis
Public health
url https://doi.org/10.1038/s41598-025-99711-4
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