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Sex Differences in the Association Between Subjective Social Status and Imaging Markers of Cardiac Inflammation and
Yolanda Sánchez-Carro1, Mayssa Moukarzel, Matthias G Friedrich
1Department of Psychology, Concordia University (Sánchez-Carro, Gouin); Department of Medicine and Health Sciences, McGill University (Moukarzel, Friedrich, Luu); Department of Diagnostic Radiology, McGill University (Friedrich), Montreal, Canada.
Objective:
Beyond objective socioeconomic status (SES) indicators, subjective social status (SSS), an individual's subjective perception of their social standing relative to others, has been independently linked to cardiovascular disease (CVD) morbidity and mortality. Some studies also report sex differences in the association between SSS and CVD. This study aimed to investigate these potential sex differences using advanced cardiac magnetic resonance imaging to detect subclinical CVD progression among healthy individuals.
Methods:
A cross-sectional study was conducted with 443 participants (mean age = 56.40, SD = 10.88; 52.14% females) free of CVD. All participants underwent cardiac magnetic resonance imaging for quantitative assessment of T1 and T2 mapping, reflecting respectively diffuse fibrosis and edema, as part of inflammatory processes in the heart. SSS was measured using the MacArthur Subjective Social Status Scale.
Results:
Female sex [b(SE) = 0.29 (0.10), p = .005], lower education [b(SE) = -0.23 (0.10), p = .026], and an interaction between sex and SSS [b(SE) = -0.15 (0.06), p = .019] were associated with higher T1 values, indicating a stronger association between lower SSS and cardiac fibrosis markers in females compared with males. No significant associations were found for T2 values.
Conclusions:
These findings extend the literature on the association of SSS with cardiovascular outcomes. Compared with males, females demonstrated a stronger association between lower SSS and an imaging marker of cardiac fibrosis among individuals free of CVD, further highlighting the relevance of sex-specific cardiovascular risk assessment.
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