parapsoriasis: one of a group of skin disorders that are characterized primarily by their resemblance to psoriasis (red, scaly lesions), rather than by their underlying etiology. Neoplasms can develop from parapsoriasis. For example, it can develop into cutaneous T-cell lymphoma.

Endpoint definition

FinnGen phenotype data

321302 individuals

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Apply sex-specific rule None


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Check conditions None


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Filter registries

Hospital Discharge: ICD-10 L41
Cause of death: ICD-10 L41


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

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


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Check minimum number of events None


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Extra metadata

Level in the ICD hierarchy 3
First used in FinnGen datafreeze DF2
Parent code in ICD-10 L40-L45
Name in latin Parapsoriasis

Similar endpoints

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

Venn diagram with an highlighted set fully inside another set Broader endpoints:

Venn diagram with a set fully inside an highlighted set Narrower endpoints:

Show all endpoint correlations

Summary Statistics

Key figures

All Female Male
Number of individuals 372 192 180
Unadjusted prevalence (%) 0.12 0.11 0.13
Mean age at first event (years) 46.48 43.70 49.46


Follow-up Absolute risk HR [95% CI] p N
1998–2019 0.00 0.37 [0.15, 0.91] 3.1e-2 27
15 years 0.00 0.36 [0.15, 0.85] 1.9e-2 15
5 years - - - -
1 year - - - -

Age distribution of first events

Year distribution of first events

Cumulative Incidence


Index endpoint: L12_PARAPSORI – Parapsoriasis
GWS hits: 1

Survival analyses between endpoints


before Parapsoriasis
after Parapsoriasis

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