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Modeling relationships among socioeconomic status, hostility, cardiovascular reactivity, and left ventricular mass in African American and White children.

In African American and White children and adolescents (N = 147), socioeconomic status (SES) was measured in 2 ways: (a) using neighborhood-level measures of population density, median income, educational attainment, and the number of children born to single mothers and (b) using family-level measures of parents' occupation and education. Structural equation modeling revealed that both lower family SES and lower neighborhood SES were independently associated with greater hostility and consequently greater cardiovascular reactivity to laboratory stressors in African Americans. Independent of neighborhood SES, only lower family SES was associated with greater cardiovascular reactivity in Whites. Heightened cardiovascular reactivity was associated with greater left ventricular mass (LVM) in Whites and marginally greater LVM in African Americans. Results suggest the importance of using multiple indicators of SES and confirm the relationship between SES and LVM in African Americans and Whites, albeit through different pathways.