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Objective:

Recent evidence suggests that depressive symptoms and hostility may act together, as interacting factors, to have an effect on the circulating levels of inflammatory markers relevant to coronary artery disease. Further research, however, is needed to clarify the nature of this interaction and to determine whether previous findings extend to older adults. In this report we examined the cross-sectional associations of depressive symptoms, hostility, and their interaction with circulating levels of two such inflammatory markers—interleukin-6 (IL-6) and C-reactive protein (CRP).

Methods:

A total of 316 healthy, older adults underwent a blood draw for the assessment of serum IL-6 and CRP and completed the Beck Depression Inventory-II and the Cook-Medley Hostility Scale. Regression analyses were performed to examine depressive symptoms, hostility, and their interaction as predictors of serum IL-6 and CRP …