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The Capital Region of Denmark - a part of Copenhagen University Hospital
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Incidence of atrial fibrillation in different major cancer subtypes: a Nationwide population-based 12 year follow up study

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BACKGROUND: The prevalence of both atrial fibrillation (AF) and malignancies are increasing in the elderly, but incidences of new onset AF in different cancer subtypes are not well described.The objectives of this study were therefore to determine the incidence of AF in different cancer subtypes and to examine the association of cancer and future AF.

METHODS: Using national databases, the Danish general population was followed from 2000 until 2012. Every individual aged > 18 years and with no history of cancer or AF prior to study start was included. Incidence rates of new onset AF were identified and incidence rate ratios (IRRs) of AF in cancer patients were calculated in an adjusted Poisson regression model.

RESULTS: A total of 4,324,545 individuals were included in the study. Cancer was diagnosed in 316,040 patients. The median age of the cancer population was 67.0 year and 51.5% were females. Incidences of AF were increased in all subtypes of cancer. For overall cancer, the incidence was 17.4 per 1000 person years (PY) vs 3.7 per 1000 PY in the general population and the difference increased with age. The covariate adjusted IRR for AF in overall cancer was 1.46 (95% confidence interval (CI) 1.44-1.48). The strength of the association declined with time from cancer diagnosis (IRR0-90days = 3.41 (3.29-3.54), (IRR-180 days-1 year = 1.57 (CI 1.50-1.64) and (IRR2-5 years = 1.12 (CI 1.09-1.15).

CONCLUSIONS: In this nationwide cohort study we observed that all major cancer subtypes were associated with an increased incidence of AF. Further, cancer and AF might be independently associated.

Original languageEnglish
JournalBMC Cancer
Volume19
Issue number1
Pages (from-to)1105
ISSN1471-2407
DOIs
Publication statusPublished - 14 Nov 2019

ID: 58927511