A Prospective Study of Educational Background and Breast Cancer among Japanese Women

Objective This prospective cohort study examined the association between educational level and breast cancer incidence in Japan. Method A baseline survey was conducted between 1988 and 1990 among 110,792 residents of 45 areas, aged 40-79 years. Data were restricted to 24 areas where incidence regist...

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Published in:Cancer causes & control 2008-11, Vol.19 (9), p.931-937
Main Authors: Fujino, Yoshihisa, Mori, Mitsuru, Tamakoshi, Akiko, Sakauchi, Fumio, Suzuki, Sadao, Wakai, Kenji, Tokudome, Shinkan, Yoshimura, Takesumi
Format: Article
Language:English
Subjects:
Adult
Aged
Biomedical and Life Sciences
Biomedicine
Breast cancer
Breast Neoplasms - epidemiology
Cancer Research
Cohort studies
Educational levels
Educational Status
Epidemiology
Female
Hematology
Humans
Japan - epidemiology
Junior high schools
Laboratory schools
Medical research
Middle Aged
Mortality
Oncology
Original Paper
Proportional Hazards Models
Prospective Studies
Public Health
Research universities
Risk Factors
Socioeconomic Factors
Socioeconomic status
Universities
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creator Fujino, Yoshihisa
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Tokudome, Shinkan
Yoshimura, Takesumi
description Objective This prospective cohort study examined the association between educational level and breast cancer incidence in Japan. Method A baseline survey was conducted between 1988 and 1990 among 110,792 residents of 45 areas, aged 40-79 years. Data were restricted to 24 areas where incidence registry data were available, and to subjects which provided information on educational level (32,646). The subjects were assigned to three groups according to their level of education (
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Method A baseline survey was conducted between 1988 and 1990 among 110,792 residents of 45 areas, aged 40-79 years. Data were restricted to 24 areas where incidence registry data were available, and to subjects which provided information on educational level (32,646). The subjects were assigned to three groups according to their level of education (&lt;16, 16-18, 18&lt;). During 13 years of follow-up (328,931 person-year), 169 cases of breast cancer were newly diagnosed. Results Women with a high level of education had an increased risk of breast cancer (HR = 1.93, 95 percent confidence interval (95% CI): 1.18, 3.16, in women with the highest educational level) compared with women with the lowest educational level. Adjustment for lifestyle and reproductive factors did not substantially change the results. In addition, when analyses were stratified by age subgroups, the educational difference in breast cancer incidence was more evident among the younger than the elder subgroup. Conclusion The present results suggested that cancer prevention strategies should recognize women with a higher educational level as a high risk group for breast cancer.</description><identifier>ISSN: 0957-5243</identifier><identifier>EISSN: 1573-7225</identifier><identifier>DOI: 10.1007/s10552-008-9154-5</identifier><identifier>PMID: 18389378</identifier><identifier>CODEN: CCCNEN</identifier><language>eng</language><publisher>Dordrecht: Springer</publisher><subject>Adult ; Aged ; Biomedical and Life Sciences ; Biomedicine ; Breast cancer ; Breast Neoplasms - epidemiology ; Cancer Research ; Cohort studies ; Educational levels ; Educational Status ; Epidemiology ; Female ; Hematology ; Humans ; Japan - epidemiology ; Junior high schools ; Laboratory schools ; Medical research ; Middle Aged ; Mortality ; Oncology ; Original Paper ; Proportional Hazards Models ; Prospective Studies ; Public Health ; Research universities ; Risk Factors ; Socioeconomic Factors ; Socioeconomic status ; Universities</subject><ispartof>Cancer causes &amp; control, 2008-11, Vol.19 (9), p.931-937</ispartof><rights>Copyright 2008 Springer</rights><rights>Springer Science+Business Media B.V. 2008</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c391t-515fbf2db9f8cc9a4174fa2b086c551a45a2c74fd217503955cd6c936c046cf83</citedby><cites>FETCH-LOGICAL-c391t-515fbf2db9f8cc9a4174fa2b086c551a45a2c74fd217503955cd6c936c046cf83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/40271958$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/40271958$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,58238,58471</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/18389378$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Fujino, Yoshihisa</creatorcontrib><creatorcontrib>Mori, Mitsuru</creatorcontrib><creatorcontrib>Tamakoshi, Akiko</creatorcontrib><creatorcontrib>Sakauchi, Fumio</creatorcontrib><creatorcontrib>Suzuki, Sadao</creatorcontrib><creatorcontrib>Wakai, Kenji</creatorcontrib><creatorcontrib>Tokudome, Shinkan</creatorcontrib><creatorcontrib>Yoshimura, Takesumi</creatorcontrib><creatorcontrib>JACC Study Group</creatorcontrib><creatorcontrib>for the JACC Study Group</creatorcontrib><title>A Prospective Study of Educational Background and Breast Cancer among Japanese Women</title><title>Cancer causes &amp; control</title><addtitle>Cancer Causes Control</addtitle><addtitle>Cancer Causes Control</addtitle><description>Objective This prospective cohort study examined the association between educational level and breast cancer incidence in Japan. Method A baseline survey was conducted between 1988 and 1990 among 110,792 residents of 45 areas, aged 40-79 years. Data were restricted to 24 areas where incidence registry data were available, and to subjects which provided information on educational level (32,646). The subjects were assigned to three groups according to their level of education (&lt;16, 16-18, 18&lt;). During 13 years of follow-up (328,931 person-year), 169 cases of breast cancer were newly diagnosed. Results Women with a high level of education had an increased risk of breast cancer (HR = 1.93, 95 percent confidence interval (95% CI): 1.18, 3.16, in women with the highest educational level) compared with women with the lowest educational level. Adjustment for lifestyle and reproductive factors did not substantially change the results. In addition, when analyses were stratified by age subgroups, the educational difference in breast cancer incidence was more evident among the younger than the elder subgroup. 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control</jtitle><stitle>Cancer Causes Control</stitle><addtitle>Cancer Causes Control</addtitle><date>2008-11-01</date><risdate>2008</risdate><volume>19</volume><issue>9</issue><spage>931</spage><epage>937</epage><pages>931-937</pages><issn>0957-5243</issn><eissn>1573-7225</eissn><coden>CCCNEN</coden><abstract>Objective This prospective cohort study examined the association between educational level and breast cancer incidence in Japan. Method A baseline survey was conducted between 1988 and 1990 among 110,792 residents of 45 areas, aged 40-79 years. Data were restricted to 24 areas where incidence registry data were available, and to subjects which provided information on educational level (32,646). The subjects were assigned to three groups according to their level of education (&lt;16, 16-18, 18&lt;). During 13 years of follow-up (328,931 person-year), 169 cases of breast cancer were newly diagnosed. Results Women with a high level of education had an increased risk of breast cancer (HR = 1.93, 95 percent confidence interval (95% CI): 1.18, 3.16, in women with the highest educational level) compared with women with the lowest educational level. Adjustment for lifestyle and reproductive factors did not substantially change the results. In addition, when analyses were stratified by age subgroups, the educational difference in breast cancer incidence was more evident among the younger than the elder subgroup. Conclusion The present results suggested that cancer prevention strategies should recognize women with a higher educational level as a high risk group for breast cancer.</abstract><cop>Dordrecht</cop><pub>Springer</pub><pmid>18389378</pmid><doi>10.1007/s10552-008-9154-5</doi><tpages>7</tpages></addata></record>
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source JSTOR Archival Journals and Primary Sources Collection; Springer Nature
subjects Adult
Aged
Biomedical and Life Sciences
Biomedicine
Breast cancer
Breast Neoplasms - epidemiology
Cancer Research
Cohort studies
Educational levels
Educational Status
Epidemiology
Female
Hematology
Humans
Japan - epidemiology
Junior high schools
Laboratory schools
Medical research
Middle Aged
Mortality
Oncology
Original Paper
Proportional Hazards Models
Prospective Studies
Public Health
Research universities
Risk Factors
Socioeconomic Factors
Socioeconomic status
Universities
title A Prospective Study of Educational Background and Breast Cancer among Japanese Women
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