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Blood, 1 October 2008, Vol. 112, No. 7, pp. 2675-2680. Prepublished online as a Blood First Edition Paper on July 9, 2008; DOI 10.1182/blood-2008-05-157412.
Submitted May 15, 2008
Division of Epidemiology and Community Health, University of Minnesota School of Public Health, Minneapolis, MN, United States * Corresponding author; email: folso001{at}umn.edu.
We determined prospectively the risk of VTE in relation to baseline HDL-c in 19,049 participants of the Longitudinal Investigation of Thromboembolism Etiology (LITE), which was comprised of 14,490 participants of the Atherosclerosis Risk in Communities (ARIC) study and 4,559 participants of the Cardiovascular Health Study (CHS). Additionally, we determined the risk of VTE in relation to baseline subfractions of HDL (HDL2 and HDL3) and apolipoprotein A-I (apoA-I) in 14,488 participants of the ARIC study. Age-adjusted incidence rates of VTE by HDL-c quartile ranged from 1.64 to 1.91 per 1000 person-years in men and 1.40 to 1.94 per 1000 person-years in women; however, there was no apparent trend of VTE incidence across HDL-c quartiles for either sex. The multivariate adjusted hazard ratios of VTE by HDL-c quartiles (with quartile 4 as the referent group) were nonsignificant for both genders and ranged between 0.91 and 0.99 for men and 0.78 and 1.22 for women. Results did not differ in separate evaluations of idiopathic and secondary VTE. In the ARIC study, there was no trend of VTE hazard ratios across quartiles of HDL2, HDL3, or apoA-I. Low HDL-c does not appear to be an important VTE risk factor.
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