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Region Hovedstaden - en del af Københavns Universitetshospital
Udgivet

Familial Clustering of Venous Thromboembolism - A Danish Nationwide Cohort Study

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

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Vis graf over relationer

BACKGROUND: Identification of risk factors for venous thromboembolism (VTE) is of utmost importance to improve current prophylactic regimes and treatment guidelines. The extent to which a family history contributes to the risk of VTE needs further exploration.

OBJECTIVES: To examine the relative rate of VTE in first-degree relatives compared with the general population.

METHODS: By crosslinking Danish nationwide registries we identified patients with VTE between 1978 and 2012, and their familial relations. The first member in a family to acquire VTE was defined as the proband. All first-degree relatives to probands were followed from the VTE date of the proband and until an event (VTE), death, emigration, 100 year birthday or end of study: 31st of December 2012, whichever came first. The relative rate of VTE was estimated by standardized incidence ratios (SIR) using time-dependent Poisson regression models, with the general population as a fixed reference.

RESULTS: We identified 70,767 children of maternal probands, 66,065 children of paternal probands, and 29,183 siblings to sibling probands. Having a maternal proband or a paternal proband were associated with a significantly increased VTE rate of 2.15 (CI: 2.00-2.30) and 2.06 (CI: 1.92-2.21), respectively. The highest estimate of VTE was observed among siblings (adjusted SIR of 2.60 [CI: 2.38-2.83]). Noteworthy, the rate of VTE increased for all first-degree relatives when the proband was diagnosed with VTE in a young age (≤ 50 years).

CONCLUSION: A family history of VTE was associated with a significantly increased rate of VTE among first-degree relatives compared with the general population.

OriginalsprogEngelsk
TidsskriftP L o S One
Vol/bind11
Udgave nummer12
Sider (fra-til)e0169055
ISSN1932-6203
DOI
StatusUdgivet - 29 dec. 2016

ID: 49611124