Increased Cancer Risk in Patients with Kidney Disease and Venous Thromboembolism: A population-based cohort study

Jakob Rønnow Sand*, Frederikke Schønfeldt Troelsen, Dávid Nagy, Dóra Körmendiné Farkas, Rune Erichsen, Christian F Christiansen, Henrik Toft Sørensen

*Corresponding author af dette arbejde

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Abstract

Background Venous thromboembolism (VTE) may be a harbinger of cancer in the general population. Patients with kidney disease have an a priori increased VTE risk. However, it remains unknown how a VTE affects subsequent cancer risk in these patients. Objectives To examine the cancer risk in patients with kidney disease following a VTE. Methods We conducted a nationwide population-based cohort study in Denmark (1996–2017), including all VTE patients with a diagnosis of kidney disease. We calculated absolute risks of cancer (accounting for competing risk of death) and age-, sex-, and calendar-period standardized incidence ratios (SIRs) comparing the observed cancer incidence with national cancer incidence rates and cancer incidence rates of VTE patients without kidney disease. Results We followed 3,362 VTE patients with kidney disease (45.9% females) for a median follow-up time of 2.4 years (interquartile range: 0.6–5.4). During follow-up, 464 patients were diagnosed with cancer, of whom 169 (36.4%) were diagnosed within the first year. The 1-year absolute risk of any cancer was 5.0% (95% confidence interval [CI]: 4.3–5.8), with a SIR of 2.9 (95% CI: 2.5–3.4) when compared with the general population, and 2.0 (95% CI: 1.8–2.4) when compared with VTE patients without kidney disease. During subsequent years of follow-up, the SIRs declined to 1.5 (95% CI: 1.3–1.6) when compared with the general population, and 1.1 (95% CI: 0.9–1.2) compared with VTE patients without kidney disease. Conclusion Patients with hospital-diagnosed kidney disease have increased cancer risk after VTE, especially within the first year following the VTE diagnosis.

OriginalsprogEngelsk
TidsskriftThrombosis and Haemostasis
Vol/bind123
Nummer12
Sider (fra-til)1165-1176
Antal sider12
ISSN0340-6245
DOI
StatusUdgivet - dec. 2023

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