Alopecia areata

L12_ALOPECAREATA

alopecia areata: Loss of scalp and body hair involving microscopically inflammatory patchy areas.

Endpoint definition

FinnGen phenotype data

429209 individuals

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Apply sex-specific rule None

429209

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Check conditions None

429209

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

Hospital Discharge: ICD-10 L63
Hospital discharge: ICD-9 7040B|7040C
Hospital discharge: ICD-8 70400
Cause of death: ICD-10 L63
Cause of death: ICD-9 7040B|7040C
Cause of death: ICD-8 70400

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

808

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Check minimum number of events None

808

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Include endpoints None

808

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Remove individuals based on genotype QC

767

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L12_ALOPECAREATA

Control definitions

Control exclude L12_DISORDSKINAPPENDIX

Extra metadata

Level in the ICD hierarchy 3
First used in FinnGen datafreeze DF2
Parent code in ICD-10 L60-L75
Name in latin Alopecia areata

Summary Statistics

Key figures

All Female Male
Number of individuals 767 593 174
Unadjusted prevalence (%) 0.19 0.26 0.10
Mean age at first event (years) 41.92 42.23 40.89

Mortality

Follow-up Absolute risk HR [95% CI] p N
1998–2019 0.04 1.95 [0.67, 5.73] 2.2e-1 27
15 years 0.02 1.99 [0.84, 4.68] 1.2e-1 14
5 years - - - -
1 year - - - -

Age distribution of first events

Year distribution of first events

Cumulative Incidence

Correlations

Index endpoint: L12_ALOPECAREATA – Alopecia areata
GWS hits:

Survival analyses between endpoints

Plot

before Alopecia areata
after Alopecia areata

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