Explaining the Relationship Between Personality and Health in a National Sample of African Americans: The Mediating Role of Social Support

Though associations between personality and health have been previously observed, less is known about why such relationships exist. The present study examines whether social support mediated the relationship between personality traits and health among African Americans. We hypothesized that social support would help explain the relationship between each of the five-factor model traits and physical functioning. Data were collected from a national probability sample of 803 African American adults using a telephone survey including measures of the five-factor model personality traits, social support, and physical functioning. Results of mediational analyses suggested that higher openness to experience, conscientiousness, extraversion, and agreeableness, and lower neuroticism predicted higher social support. Higher openness, conscientiousness, extraversion, and lower neuroticism, but not agreeableness, predicted higher physical functioning. The relationships between physical functioning and personality traits were at least partially mediated by social support. This study reinforces the importance of identifying the mechanisms underlying the personality-health relationship. This information may be useful to community members and health care providers in developing prevention and treatment strategies for African Americans.

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