Journal
CIRCULATION
Volume 105, Issue 9, Pages 1028-1030Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1161/hc0902.105718
Keywords
infection; plaque; ultrasonics; atherosclerosis
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Background-Recent experimental and epidemiological findings suggest that some infectious agents play a role in the development and promotion of atherosclerosis. We have investigated the possible association between hepatitis B virus surface antigen (HBsAg) positivity and carotid arteriosclerosis. Methods and Results-In this cross-sectional cohort study, we analyzed data from subjects undergoing general health-screening tests, including both high-resolution B-mode carotid ultrasound and assessment of HBsAg status, between 1994 and 2001 at our institute. Of the 4686 study subjects (3 137 men and 1549 women; age 22 to 88 years), 1294 (28%) had carotid artery plaque and 40 (0.9%) were positive for HBsAg, indicating they were hepatitis B virus carriers. No HBsAg-positive subjects were positive either for antibodies against the hepatitis C virus (HCV) or for HCV core proteins. Univariate analysis revealed HBsAg positivity was associated with carotid plaque with an odds ratio of 1.58 (95% CI, 1.14 to 2.19, P<0.05). When other confounding risk-factors for atherosclerosis were included as covariates in the statistical analysis, HBsAg positivity was still positively associated with carotid plaque with an odds ratio of 1.57 (95% CI. 1.10 to 2.24, P<0.05). Conclusions-These findings suggest a possible role of chronic hepatitis B infection in the pathogenesis of carotid arteriosclerosis.
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