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Atrial fibrillation and flutter


atrial fibrillation: A disorder characterized by an electrocardiographic finding of a supraventricular arrhythmia characterized by the replacement of consistent P waves by rapid oscillations or fibrillatory waves that vary in size, shape and timing and are accompanied by an irregular ventricular response. (CDISC)

Endpoint definition

FinnGen phenotype data

429209 individuals

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Apply sex-specific rule None


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Check conditions None


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Check pre-conditions, main-only, mode, registry filters

Hospital Discharge: ICD-10 I48
Hospital discharge: ICD-9 4273
Hospital discharge: ICD-8 42792
Cause of death: ICD-10 I48
Cause of death: ICD-9 4273
Cause of death: ICD-8 42792
KELA reimbursements: KELA codes 207|351
KELA reimbursements: ICD-10 I48

3 out of 7 registries used, show all original rules.


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Check minimum number of events None


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Include endpoints


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Remove individuals based on genotype QC


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Control definitions

Control exclude FG_CVD

Extra metadata

Level in the ICD hierarchy 4
First used in FinnGen datafreeze DF2
Parent code in ICD-10 I30-I52
Name in latin Fibrillatio atriorum

Summary Statistics

Key figures

All Female Male
Number of individuals 50742 18932 31810
Unadjusted prevalence (%) 12.32 8.22 17.50
Mean age at first event (years) 68.11 69.97 67.00


Follow-up Absolute risk HR [95% CI] p N
1998–2019 0.08 3.46 [3.09, 3.86] <1e-100 13714
15 years 0.02 1.94 [1.77, 2.12] 1.8e-46 5024
5 years 0.01 3.99 [3.72, 4.28] <1e-100 4604
1 year 0.00 10.82 [9.89, 11.84] <1e-100 2884

Age distribution of first events

Year distribution of first events

Cumulative Incidence


Index endpoint: I9_AF – Atrial fibrillation and flutter
GWS hits: 113

Survival analyses between endpoints


before Atrial fibrillation and flutter
after Atrial fibrillation and flutter

loading spinner Loading survival analyses plot

Drugs most likely to be purchased after Atrial fibrillation and flutter