Title | ABO blood group, other risk factors and incidence of venous thromboembolism: the Longitudinal Investigation of Thromboembolism Etiology (LITE). |
Publication Type | Journal Article |
Year of Publication | 2007 |
Authors | Ohira, T, Cushman, M, Tsai, MY, Zhang, Y, Heckbert, SR, Zakai, NA, Rosamond, WD, Folsom, AR |
Journal | J Thromb Haemost |
Volume | 5 |
Issue | 7 |
Pagination | 1455-61 |
Date Published | 2007 Jul |
ISSN | 1538-7933 |
Keywords | ABO Blood-Group System, Aged, Case-Control Studies, Diabetes Complications, Factor V, Factor VIII, Female, Humans, Longitudinal Studies, Male, Middle Aged, Risk Factors, Thromboembolism, Venous Thrombosis, von Willebrand Factor |
Abstract | <p><b>BACKGROUND: </b>Numerous case-control studies have reported higher prevalence of non-O blood type among venous thromboembolism (VTE) patients than controls, but potential mechanisms or effect modifiers for the association are not fully established.</p><p><b>PATIENTS/METHODS: </b>Using a nested case-control design combining the Atherosclerosis Risk in Communities and the Cardiovascular Health Study cohort, ABO blood type and other VTE risk factors were measured on pre-event blood samples of 492 participants who subsequently developed VTE and 1008 participants who remained free of VTE.</p><p><b>RESULTS: </b>A total of 64.4% of cases and 52.5% of controls had non-O blood type. Among controls, mean values of factor VIIIc (FVIIIc) and von Willebrand factor among the non-O blood type group were higher than among the O group. Compared with O blood type, the age-adjusted odds ratio (OR) of VTE for non-O blood type was 1.64 (95% CI, 1.32-2.05) and was similar for the two parent studies and race groups. Further adjustment for sex, race, body mass index, diabetes mellitus and FVIIIc reduced the OR: 1.31 (95% CI, 1.02-1.68). Factor V Leiden (FV Leiden) appeared to modify the non-O blood type association with VTE in a supra-additive fashion, with an age-, sex- and race-adjusted OR of 6.77 (95% CI, 3.65-12.6) for having both risk factors.</p><p><b>CONCLUSIONS: </b>Non-O blood type was independently associated with risk of VTE, and added to the risk associated with FV Leiden.</p> |
DOI | 10.1111/j.1538-7836.2007.02579.x |
Alternate Journal | J Thromb Haemost |
PubMed ID | 17425663 |
Grant List | N01-HC-55015 / HC / NHLBI NIH HHS / United States N01-HC-55016 / HC / NHLBI NIH HHS / United States N01-HC-55018 / HC / NHLBI NIH HHS / United States N01-HC-55019 / HC / NHLBI NIH HHS / United States N01-HC-55020 / HC / NHLBI NIH HHS / United States N01-HC-55021 / HC / NHLBI NIH HHS / United States N01-HC-55022 / HC / NHLBI NIH HHS / United States N01-HC-85079 / HC / NHLBI NIH HHS / United States N01-HC-85086 / HC / NHLBI NIH HHS / United States R01 HL59367 / HL / NHLBI NIH HHS / United States |