Socioeconomic position, John Henryism, and incidence of acute myocardial infarction in Finnish men

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http://hdl.handle.net/10138/233199

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Mujahid , M S , James , S A , Kaplan , G A & Salonen , J 2017 , ' Socioeconomic position, John Henryism, and incidence of acute myocardial infarction in Finnish men ' Social Science & Medicine , vol 173 , pp. 54-62 . DOI: 10.1016/j.socscimed.2016.11.034

Title: Socioeconomic position, John Henryism, and incidence of acute myocardial infarction in Finnish men
Author: Mujahid, Mahasin S.; James, Sherman A.; Kaplan, George A.; Salonen, Jukka
Contributor: University of Helsinki, Hjelt Institute
Date: 2017-01
Language: eng
Number of pages: 9
Belongs to series: Social Science & Medicine
ISSN: 0277-9536
URI: http://hdl.handle.net/10138/233199
Abstract: Previous cross-sectional studies examining whether John Henryism (JH), or high-effort coping with socioeconomic adversity, potentiates the inverse association between socioeconomic position (SEP) and cardiovascular health have focused mainly on hypertension in African Americans. We conducted the first longitudinal test of this hypothesis on incident acute myocardial infarction (AMI) using data from the Kuopio Ischemic Heart Disease Risk Factor Study in Finland (N = 1405 men, 42-60 years). We hypothesized that the expected inverse gradient between SEP and AMI risk would be stronger for men scoring high on JH than for those scoring low. John Henryism was measured by a Finnish version of the JH Scale for Active Coping. Four different measures of SEP were used: childhood SEP, education, income, and occupation. AMI hazard ratios (HR) by SEP and JH were estimated using COX proportional hazard models, before and after adjustment for study covariates. 205 cases of AMI occurred over a median of 14.9 years. Men employed in lower rank (farmer, blue-collar) occupations who scored high on JH had significantly higher age-adjusted risks of AMI than men in higher rank (white-collar) occupations (HR = 3.14, 95% CI: 1.65-5.98 for blue collar; HR = 2.33, 95% Cl: 1.04-5.22 for farmers) who also scored high on JH. No socioeconomic differences in AMI were observed for men who scored low on JH (HR = 136, 95% CI: 0.74 2.47 for blue collar; HR = 0.93, 95% CI: 0.59-1.48 for farmers; p = 0.002 for the SEP x JH interaction). These findings persisted after adjustment for sociodemographic, behavioral, and biological factors. Results for other SEP measures were in the same direction, but did not reach statistical significance. Repetitive high-effort coping with adversity (John Henryism) was independently associated with increased risk for AMI in Finnish men, underscoring the potential relevance of the John Henryism hypothesis to CVD outcomes other than hypertension and to populations other than African Americans. (C) 2016 Published by Elsevier Ltd.
Subject: John Henryism
Socioeconomic position
Cardiovascular disease
ISCHEMIC-HEART-DISEASE
BLOOD-PRESSURE
RISK-FACTOR
CARDIOVASCULAR-DISEASE
PSYCHOSOCIAL FACTORS
SYSTEMATIC ANALYSIS
AFRICAN-AMERICANS
CIVIL-SERVANTS
MEDIATING ROLE
GLOBAL BURDEN
3142 Public health care science, environmental and occupational health
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