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Dermatographic urticaria

DOID EFO Endpoint Browser PheWeb

L12_URTICA_DERTMATOG

dermatographia: Familial dermographism is a condition also known as skin writing. When people who have dermatographia lightly scratch their skin, the scratches redden into a raised wheal similar to hives. Signs and symptoms of dermatographia include raised red lines, swelling, inflammation, hive-like welts and itching. Symptoms usually disappear within 30 minutes. The exact cause of this condition is unknown. Treatment mayinvovle use of antihistamines if symptoms do not go away on their own.

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Endpoint definition

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Endpoint definition steps

FinnGen

Phenotype data

429209

1. Apply sex-specific rule

None

429209

2. Check conditions

None

429209

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

Registry filters:

  • Hospital discharge: ICD-10 — L50.3
  • Hospital discharge: ICD-9 — 7083
  • Cause of death: ICD-10 — L50.3
  • Cause of death: ICD-9 — 7083

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

2176

4. Check minimum number of events

None

2176

5. Include endpoints

None

2176

6. Filter based on genotype QC (FinnGen only)

2077

Control definitions (FinnGen only)

Control exclude L12_URTICARIAERYTHEMA

Extra metadata

Level in the ICD hierarchy 4
First used in FinnGen datafreeze DF2
Parent code in ICD-10 L50
Name in latin Urticaria derm[at]ographica

Case counts by codes

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FinnGen case counts by registry codes:

generic upset plot

Upset plot

Full data table

Summary Statistics

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-FinRegistry-

Key figures

All Female Male
Number of individuals
Whole population 15685 11264 4351
Only index persons 15227 11048 4179
Unadjusted period prevalence (%)
Whole population 0.27 0.32 0.12
Only index persons 0.34 0.41 0.16
Median age at first event (years)
Whole population 41.50 41.98 40.28
Only index persons 41.59 42.07 40.32

-FinnGen-

Key figures

All Female Male
Number of individuals 2077 1653 424
Unadjusted period prevalence (%) 0.62 0.72 0.23
Median age at first event (years) 45.92 44.40 51.86

-FinRegistry-

Age distribution of first events

-FinnGen-

Age distribution of first events

-FinRegistry-

Year distribution of first events

-FinnGen-

Year distribution of first events

-FinRegistry-

Cumulative Incidence Function

-FinnGen-

Cumulative Incidence Function

Mortality – FinRegistry

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Relationships between endpoints

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Index endpoint: L12_URTICA_DERTMATOG – Dermatographic urticaria

GWS hits: -

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