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Psychometric properties of the Cook Medley hostility scale and its association with inflammatory markers in African
Denee T Mwendwa1, Mana K Ali, Regina C Sims
1Department of Psychology, Howard University, Washington, DC, USA. dmwendwa@howard.edu
Insights
Hostility
Area of Science:
- Psychology
- Cardiovascular Health
- Immunology
Background:
- Dispositional hostility, measured by the Cook Medley Hostility (Ho) Scale, is linked to inflammation and cardiovascular disease (CVD) risk.
- Specific hostility factors may predict cardiovascular health outcomes better than a general hostility construct.
- African Americans face a disproportionate burden of CVD but are underrepresented in hostility and health research.
Purpose of the Study:
- To explore latent hostility factors and their relationship with inflammatory markers (interleukin-6 [IL-6] and C-reactive protein [CRP]) in African Americans.
- To address the research gap concerning hostility, inflammation, and CVD risk in this population.
Main Methods:
- Administered the Cook Medley Hostility (Ho) Scale to a community sample of African Americans.
- Collected blood samples for plasma IL-6 and CRP measurement via enzymatic-linked immunosorbent assay.
- Utilized confirmatory factor analysis to identify latent hostility factors and subfactors.
Main Results:
- Confirmatory factor analysis identified three main hostility factors and seven subfactors.
- Hostile affect was significantly associated with elevated CRP levels.
- Predatory self-interest was significantly associated with elevated IL-6 levels.
Conclusions:
- African Americans exhibit a distinct pattern of hostility.
- Two specific hostility subfactors (hostile affect and predatory self-interest) are linked to CVD markers.
- Further research is needed to understand how hostility influences health outcomes in African Americans.
Abstract:
Dispositional hostility as measured by the Cook Medley Hostility (Ho) Scale has been associated with inflammation and cardiovascular disease (CVD) risk. There is evidence that suggests that factors of hostility are more useful in predicting poor cardiovascular health outcomes than a single hostility construct. The purpose of this study was to investigate the latent factors of hostility and their association with inflammatory markers interleukin-6 (IL-6) and C-reactive protein (CRP) in an African-American community sample. This racial/ethnic group has been largely excluded from this line of research despite their disproportionate burden of CVD and its risk factors. Blood samples for plasma IL-6 and CRP were collected on the same day the Ho Scale was administered. Plasma IL-6 and CRP levels were determined using enzymatic-linked immunosorbent assay. Confirmatory factor analysis revealed three latent main factors of hostility: Neuroticism, Manichaeism and Moral Primitiveness, and seven intermediary subfactors. Of the subfactors, hostile affect was significantly associated with greater CRP levels and predatory self interest was significantly associated with greater IL-6 levels. Findings suggest that African Americans have a unique pattern of hostility and two latent subfactors are associated with a marker of CVD. Based on the findings, future studies should aim to further delineate how hostility influences health outcomes in African Americans.
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