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Low Socioeconomic Status but Resilient: Panacea or Double Trouble? John Henryism in the International IMIAS Study of Older Adults

  • Shaan GuptaEmail author
  • Emmanuelle Bélanger
  • Susan P. Phillips
ORIGINAL ARTICLE
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Abstract

John Henry (JH) theory provides a framework for understanding the physiological toll exerted on low socioeconomic status (SES) individuals as they overcome psychosocial stressors imposed by their environments. This theory suggests that resilience, a seemingly positive social adaptation, may in fact be physically deleterious. JH theory has been well-described in low-SES rural male African Americans, however it is currently unclear whether validity of this theory extends to women, other races and outside the rural US. We assessed whether, in individuals with low income, there is an association between self-mastery/resilience and either blood pressure or depressive symptoms that is different from the association seen in individuals with higher income. Data were obtained from 1353 older men and women participants of the International Mobility in Aging Study (IMIAS). Across 3 countries and 4 sites, higher self-mastery/resilience was associated with lower depressive symptoms in both low and high income groups. In low income individuals from Saint-Hyacinthe, Québec, higher self-mastery/resilience was associated with both higher mean systolic blood pressure (n = 240, β = 0.135, p ≤ 0.05) and higher mean diastolic blood pressure (n = 240, β = 0.241, p ≤ 0.0001). In the high income group of Saint-Hyacinthe, no such associations were observed. The findings in the Saint-Hyacinthe cohort (but not the other settings), are consistent with the John Henry hypothesis, and demonstrates this effect extends beyond a rural African American population. This finding indicates that in certain populations, the positive psychological effects of resilience come with a cost to physical health.

Keywords

John Henryism Resilience Self mastery Hypertension Depression 

Abbreviations

CESD

Center for Epidemiologic Studies Depression Score

DBP

Diastolic blood pressure

HR

Heart rate

IMIAS

International Mobility in Aging Study

JH

John Henry

JHAC12

John Henry Active Coping Scale

SBP

Systolic blood pressure

SES

Socioeconomic status

US

United States

Notes

Acknowledgements

Thank you to Dr. Chris O’Callaghan for providing guidance and expertise with the statistical analysis.

Author Contributions

SP was responsible for the initial study concept and manuscript revision. SG further developed the study concept, performed data processing, data analysis and drafted the manuscript, under the supervision of SP. EB provided critical revisions.

Funding

This research was funded as a multi-year team grant by the Canadian Institutes of Health Research (application # 229036, FRN# 108751.)

Compliance with Ethical Standards

Competing Interests

The authors declare that they have no conflict of interest.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of MedicineQueen’s UniversityKingstonCanada
  2. 2.Institut de Recherche en Santé PubliqueUniversité de MontréalMontrealCanada
  3. 3.Department of Family MedicineQueen’s UniversityKingstonCanada

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