Seborrhoeic dermatitis

L12_SEBORRHOEIC

seborrheic dermatitis: A dermatitis that is an inflammatory skin condition resulting in flaky, white to yellowish scales on oily areas such as the scalp or inside the ear, which is caused due to a combination of an over production of skin oil and irritation from a yeast Malassezia furfur. The symptoms include itching, skin lesions and scales, redness, plaques and hair loss.

Endpoint definition

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FinnGen phenotype data

321302 individuals

Apply sex-specific rule None

321302

Check conditions None

321302

Filter registries

Hospital Discharge: ICD-10 L21

Hospital discharge: ICD-9 690

Hospital discharge: ICD-8 690|70630

Cause of death: ICD-10 L21

Cause of death: ICD-9 690

Cause of death: ICD-8 690|70630

1978

Check pre-conditions, main-only, mode, ICD version

Look only at ICD versions H.D: 10, 8, 9 ; C.O.D: 10, 8, 9

1978

Check minimum number of events None

1978

Include endpoints None

1978

L12_SEBORRHOEIC

Extra metadata

Level in the ICD hierarchy 3

First used in FinnGen datafreeze DF2

Parent code in ICD-10 L20-L30

Name in latin Eczema seborrhoicum

Similar endpoints

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List of similar endpoints to Seborrhoeic dermatitis based on the number of shared cases.

Broader endpoints:

Narrower endpoints:

None

Show all endpoint correlations

Summary Statistics

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Key figures

	All	Female	Male
Number of individuals	1919	801	1118
Unadjusted prevalence (%)	0.62	0.46	0.83
Mean age at first event (years)	51.48	46.59	54.98

Mortality

Follow-up	Absolute risk	HR [95% CI]	p	N
1998–2019	0.02	1.51 [0.83, 2.76]	1.8e-1	175
15 years	0.01	1.09 [0.59, 2.02]	7.7e-1	89
5 years	0.00	2.37 [1.28, 4.37]	5.9e-3	59
1 year	0.00	3.29 [1.64, 6.59]	8.1e-4	16

Age distribution of first events

Year distribution of first events

Cumulative Incidence

Correlations

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Index endpoint: L12_SEBORRHOEIC – Seborrhoeic dermatitis
GWS hits: 0

Survival analyses between endpoints

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Plot

before Seborrhoeic dermatitis
after Seborrhoeic dermatitis

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Table

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Drugs most likely to be purchased after Seborrhoeic dermatitis

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