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01.12.2015 | Research article | Ausgabe 1/2015 Open Access

BMC Public Health 1/2015

The role of income and occupation in the association of education with healthy aging: results from a population-based, prospective cohort study

Zeitschrift:
BMC Public Health > Ausgabe 1/2015
Autoren:
Christine M. White, Philip D. St. John, Madelon R. Cheverie, Maryam Iraniparast, Suzanne L. Tyas
Wichtige Hinweise

Electronic supplementary material

The online version of this article (doi:10.​1186/​s12889-015-2504-9) contains supplementary material, which is available to authorized users.

Competing interests

The authors declare that they have no competing interests.

Authors’ contributions

CMW and SLT conceived the study and drafted the manuscript. CMW, SLT and MI conducted analyses and interpreted the results. MRC and SLT developed and tested the healthy aging construct. PDSJ contributed to the acquisition of data and funding for the larger study from which secondary data were used for this manuscript, and to revision of the manuscript for intellectual content. All authors reviewed and approved the final version submitted for publication.

Abstract

Background

The beneficial effects of higher education on healthy aging are generally accepted, but the mechanisms are less well understood. Education may influence healthy aging through improved employment opportunities that enhance feelings of personal control and reduce hazardous exposures, or through higher incomes that enable individuals to access better health care or to reside in better neighbourhoods. Income and occupation have not been explored extensively as potential mediators of the effect of education on healthy aging. This study investigates the role of income and occupation in the association between education and healthy aging including potential effect modification by gender.

Methods

Logistic regression was used to explore the association of education, income (perceived income adequacy, life satisfaction with finances) and occupation (occupational prestige) with healthy aging five years later in 946 community-dwelling adults 65+ years from a population-based, prospective cohort study in Manitoba, Canada.

Results

Higher levels of education generally increased the likelihood of healthy aging. After adjusting for education, both income measures, but not occupation, predicted healthy aging among men; furthermore, the association between education and healthy aging was no longer significant. Income and occupation did not explain the significant association between education and healthy aging among women.

Conclusions

Perceived income adequacy and life satisfaction with finances explained the beneficial effects of higher education on healthy aging among men, but not women. Identifying predictors of healthy aging and the mechanisms through which these factors exert their effects can inform strategies to maximize the likelihood of healthy aging.
Zusatzmaterial
Additional file 1: Derivation of analytic sample, Manitoba Study of Health and Aging. (DOCX 44 kb)
12889_2015_2504_MOESM1_ESM.docx
Additional file 2: Characteristics of study population at baseline by healthy aging status at follow-up, Manitoba Study of Health and Aging (n=1,751). (DOCX 38 kb)
12889_2015_2504_MOESM2_ESM.docx
Additional file 3: Characteristics of study population at baseline by healthy aging status at baseline, Manitoba Study of Health and Aging (n=896). (DOCX 19 kb)
12889_2015_2504_MOESM3_ESM.docx
Additional file 4: Mean monthly household income by levels of perceived income adequacy and life satisfaction with finances at baseline, Manitoba Study of Health and Aging (n=796). (DOCX 35 kb)
12889_2015_2504_MOESM4_ESM.docx
Additional file 5: The association of healthy aging at follow-up with baseline education, household Income, perceived income adequacy, life satisfaction with finances and occupational prestige, Manitoba Study of Health and Aging (n=796). (DOCX 36 kb)
12889_2015_2504_MOESM5_ESM.docx
Additional file 6: The association of healthy aging at follow-up with baseline education, household income, perceived Income adequacy, life satisfaction with finances and occupational prestige, Manitoba Study of Health and Aging (n=946). (DOCX 36 kb)
12889_2015_2504_MOESM6_ESM.docx
Literatur
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