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21.08.2018 | Original Paper

Sex differences in risk of incident venous thromboembolism in heart failure patients

Zeitschrift:
Clinical Research in Cardiology
Autoren:
Line Melgaard, Peter Brønnum Nielsen, Thure Filskov Overvad, Flemming Skjøth, Gregory Y. H. Lip, Torben Bjerregaard Larsen
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s00392-018-1329-9) contains supplementary material, which is available to authorized users.

Abstract

Background

In patients with incident heart failure, the risk of venous thromboembolism (VTE), defined as pulmonary embolism (PE) and/or deep venous thrombosis (DVT), is sparsely described, especially potential sex differences. We conducted an observational study to evaluate risk of VTE among male and female heart failure patients.

Methods

Population-based cohort study of patients diagnosed with incident heart failure during 2000–2015, identified by record linkage between nationwide registries in Denmark. Using a pseudo-value approach, we calculated relative risks [RR] of VTE at 1 and 3 years of follow-up. Crude VTE risk for males and females are reported and contrasted after adjustment for established clinical risk factors for VTE.

Results

A total of 32,330 heart failure patients were included, of which 15,238 (47%) were females. For the combined endpoint of VTE, female sex was associated with a higher risk (1-year adjusted RR: 1.30, 95% confidence interval [CI]: 0.97–1.73; 3-year adjusted RR: 1.34, 95% CI: 1.07–1.67) compared to male patients. For the individual endpoints of PE and DVT after 1-year of follow-up, female sex was only associated with a higher risk of PE and not DVT, compared to male patients. However, female sex was associated with a higher risk of both PE and DVT after 3 years of follow-up.

Conclusions

Among incident heart failure patients, female sex is associated with a higher risk of VTE, mainly driven by an excess risk of PE. This finding may help improve clinical decision-making regarding VTE prophylaxis in patients with heart failure.

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Zusatzmaterial
Supplementary material 1 (PDF 87 KB)
392_2018_1329_MOESM1_ESM.pdf
Literatur
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