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Br J Haematol. 2012 Mar;156(5):667-71. doi: 10.1111/j.1365-2141.2011.09018.x. Epub 2012 Jan 11.

Elevated albuminuria associated with increased risk of recurrent venous thromboembolism: results of a population-based cohort study.

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  • 1Division of Haemostasis and Thrombosis, Department of Haematology, University Medical Centre Groningen, Groningen, The Netherlands. i.m.schouwenburg@umcg.nl


This study examined the risk of recurrent venous thromboembolism (VTE) in patients with elevated albuminuria. In 1997-1998, inhabitants of Groningen, the Netherlands, aged 28-75 years (n=85,421), were invited to participate in the PREVEND (Prevention of REnal and Vascular ENd stage Disease) Study, an observational, population-based cohort study. Albuminuria was measured and VTE occurrence was monitored in responding subjects (n=40,856). Patients with first VTE between study entry and January 2009, identified through databases of the national registry of hospital discharge diagnoses, death certificates, regional anticoagulation clinic and medical records, were used for analysis. Of 351 subjects with first VTE, 37 subjects developed a recurrence during a median follow-up period of 3.3 (interquartile range, 1.1-6.4) years. The annual incidence of recurrence in subjects with elevated albuminuria (≥ 20 mg/l) was 5.00% [95% confidence interval (CI); 2.16-9.85], compared to 2.38% (95%CI; 1.59-3.41) in subjects with normal albuminuria (<20 mg/l). Hazard ratio for recurrence was 1.95 (95%CI; 0.89-4.30) after adjustment for age and sex. This hazard ratio was 3.35 (95%CI; 1.18-9.47) in patients with first unprovoked, and 1.12 (95%CI; 0.25-5.01) in those with a first provoked event. This study showed that subjects with elevated albuminuria who experience an unprovoked VTE are at an increased risk of recurrence, independent of age and sex.

© 2012 Blackwell Publishing Ltd.

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