Cicatricial alopecia [scarring hair loss]

L12_HAIRLOSSSCAR

Endpoint definition

Endpoint definition steps

FinnGen

Phenotype data

473681

1. Apply sex-specific rule

None

473681

2. Check conditions

None

473681

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

Registry filters:

  • Hospital discharge: ICD-10 L66
  • Cause of death: ICD-10 L66

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

199

4. Check minimum number of events

None

199

5. Include endpoints

233

6. Filter based on genotype QC (FinnGen only)

228

Control definitions (FinnGen only)

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 cicatrisans

Case counts by codes

FinnGen case counts by registry codes:

generic upset plot

Upset plot

Full data table

Summary Statistics

-FinRegistry-

Key figures

All Female Male
Number of individuals
Whole population 1938 1201 729
Only index persons 1789 1155 634
Unadjusted period prevalence (%)
Whole population 0.03 0.03 0.02
Only index persons 0.04 0.04 0.02
Median age at first event (years)
Whole population 48.69 56.69 35.57
Only index persons 48.37 56.89 32.84

-FinnGen-

Key figures

All Female Male
Number of individuals 228 171 57
Unadjusted period prevalence (%) 0.06 0.07 0.03
Median age at first event (years) 54.42 57.94 43.88

-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

No data

Mortality – FinRegistry

Association

Association between endpoint L12_HAIRLOSSSCAR and mortality.

Females

Parameter HR [95% CI] p-value
L12_HAIRLOSSSCAR 1.016 [0.78, 1.33] 0.91
Birth year 0.996 [0.99, 1.0] 0.377

During the follow-up period (1.1.1998 — 31.12.2019), 71 out of 867 females with L12_HAIRLOSSSCAR died.

Males

No data

Mortality risk

Mortality risk for people of age

years, who have L12_HAIRLOSSSCAR.

N-year risk Females Males
1 0.114% No data
5 0.624% No data
10 1.506% No data
15 3.054% No data
20 5.469% No data

Relationships between endpoints

Index endpoint: L12_HAIRLOSSSCAR – Cicatricial alopecia [scarring hair loss]

GWS hits: -

Endpoint
Case Overlap
Survival Analysis
Genetic Correlations
Genetic Signals
N (Jaccard index)
HR [CI]
Extremity
rg [CI]
Extremity
Hits
Coloc Hits
FinRegistry
FinnGen
FinRegistry
FinnGen
FinnGen
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