Abstract
Purpose
Our study examined psychosocial risk and protective features affecting cardiovascular and mortality disparities in American Indians, including stress, anger, cynicism, trauma, depression, quality of life, and social support.
Methods
The Strong Heart Family Study cohort recruited American Indian adults from 12 communities over 3 regions in 2001–2003 (N = 2786). Psychosocial measures included Cohen Perceived Stress, Spielberger Anger Expression, Cook-Medley cynicism subscale, symptoms of post-traumatic stress disorder, Centers for Epidemiologic Studies Depression scale, Short Form 12-a quality of life scale, and the Social Support and Social Undermining scale. Cardiovascular events and all-cause mortality were evaluated by surveillance and physician adjudication through 2017.
Results
Participants were middle-aged, 40% male, with mean 12 years formal education. Depression symptoms were correlated with anger, cynicism, poor quality of life, isolation, criticism; better social support was correlated with lower cynicism, anger, and trauma. Adjusted time-to-event regressions found that depression, (poor) quality of life, and social isolation scores formed higher risk for mortality and cardiovascular events, and social support was associated with lower risk. Social support partially explained risk associations in causal mediation analyses.
Conclusion
Altogether, our findings suggest that social support is associated with better mood and quality of life; and lower cynicism, stress, and disease risk—even when said risk may be increased by comorbidities. Future research should examine whether enhancing social support can prospectively reduce risk, as an efficient, cost-effective intervention opportunity that may be enacted at the community level.
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Data availability
The data used in these analyses are part of a data repository for the Strong Heart Study cohort. These data are the intellectual property of the tribes from which the data were collected, and their use for analysis is contingent on formal approval procedures. For more information, please visit strongheartstudy.org.
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Acknowledgements
The authors wish to thank Strong Heart Study staff and participants. The opinions included herein are those of the authors, and not necessarily those of the Indian Health Service (IHS). This work has been funded in whole or in part with federal funds from the National Institutes of Health by research grants K01AG057821, P50AG005136, R01HL109315, R01HL109284, and R01HL109319; and by the Health Equity Research Center, a Washington State University strategic research initiative.
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Suchy-Dicey, A., Eyituoyo, H., O’Leary, M. et al. Psychological and social support associations with mortality and cardiovascular disease in middle-aged American Indians: the Strong Heart Study. Soc Psychiatry Psychiatr Epidemiol 57, 1421–1433 (2022). https://doi.org/10.1007/s00127-022-02237-7
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DOI: https://doi.org/10.1007/s00127-022-02237-7