Depression and C-reactive Protein: Population-based Health 2000 Study

Overview

Journal Psychosom Med

Specialty Psychiatry

Date 2009 Mar 20

PMID 19297307

Citations 60

Authors

Marko Elovainio

Anna-Mari Aalto

Mika Kivimaki

Sami Pirkola

Jouko Sundvall

Jouko Lonnqvist

Antti Reunanen

Affiliations

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Abstract

Objective: To test whether depression is independently associated with elevated levels of C-reactive protein (CRP) in a large nationwide population-based sample.

Methods: Depression and CRP were assessed in 6005 Finns aged >30 years, as part of the ongoing population-based Health 2000 Study. Depression was determined by responses to the Beck's Depression Inventory (BDI-21) and by Composite International Diagnostic Interview (CIDI).

Results: Higher scores on BDI-21 were related to higher CRP levels (beta = 0.12, p < .001) in men and (beta = 0.08, p < .001) in women. In men, but not in women, this relationship persisted after adjustment for a number of other known risk factors. In men, the more recent dysthymic disorder or at least moderate depressive episode defined using CIDI was related to elevated CRP levels (beta = 0.06, p = .006).

Conclusions: Depressive symptoms may be partly responsible for inflammatory processes, and inflammatory processes may induce depressive symptoms in men.

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