alopecia areata: Loss of scalp and body hair involving microscopically inflammatory patchy areas.
Endpoint definition
↥
Endpoint definition steps |
FinnGen |
---|---|
Phenotype data |
520210 |
1. Apply sex-specific ruleNone |
520210 |
2. Check conditionsNone |
520210 |
3. Check pre-conditions, main-only, mode, registry filtersRegistry filters:
2 out of 7 registries used, show all original rules. |
1003 |
4. Check minimum number of eventsNone |
1003 |
5. Include endpointsNone |
1003 |
6. Filter based on genotype QC (FinnGen only) |
1003 |
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 areata
Similar endpoints
↥List of similar endpoints to Alopecia areata based on the number of shared cases.
Similar with more cases:
- Disorders of skin appendages
- Autoimmune diseases
- Used for control exclusion in common control thyroid runs
- Diseases of the skin and subcutaneous tissue
- Any event in hilmo or specialist outpatient
Similar with less cases:
None
Case counts by codes
↥Summary Statistics
↥-FinRegistry-
Key figures
All | Female | Male | |
---|---|---|---|
Number of individuals | |||
Whole population | 7560 | 5187 | 2341 |
Only index persons | 7028 | 4903 | 2125 |
Unadjusted period prevalence (%) | |||
Whole population | 0.12 | 0.15 | 0.07 |
Only index persons | 0.15 | 0.18 | 0.08 |
Median age at first event (years) | |||
Whole population | 32.57 | 36.09 | 24.73 |
Only index persons | 33.86 | 37.07 | 26.45 |
-FinnGen-
Key figures
All | Female | Male | |
---|---|---|---|
Number of individuals | 1003 | 781 | 222 |
Unadjusted period prevalence (%) | 0.23 | 0.27 | 0.10 |
Median age at first event (years) | 43.58 | 43.86 | 42.59 |
-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
CodeWAS (R11)
↥CodeWAS is a tool for exploring the associations between an endpoint and all of the medical codes and drug codes.
This is a new tool, please reach out using the contact form for feedback and improvement ideas.
First, a cohort is built by matching controls to the endpoint cases using year of birth and sex. Then, a Fisher test is done for all the medical codes and drug codes between the cases and controls of this cohort. Codes are reported in the table below if they have −log10(p-value) ≥ 6.
Matched cohort
- Matched cases
- 909
- Matched controls
- 9088
LabWAS
↥Mortality – FinRegistry
↥Association
Association between endpoint L12_ALOPECAREATA and mortality.
Females
Parameter | HR [95% CI] | p-value |
---|---|---|
L12_ALOPECAREATA | 1.002 [0.85, 1.18] | 0.981 |
Birth year | 0.996 [0.99, 1.0] | 0.338 |
During the follow-up period (1.1.1998 — 31.12.2019), 192 out of 4322 females with L12_ALOPECAREATA died.
Males
Parameter | HR [95% CI] | p-value |
---|---|---|
L12_ALOPECAREATA | 0.868 [0.7, 1.08] | 0.206 |
Birth year | 0.987 [0.98, 1.0] | 0.007 |
During the follow-up period (1.1.1998 — 31.12.2019), 93 out of 1847 males with L12_ALOPECAREATA died.
Mortality risk
Mortality risk for people of age
years, who have L12_ALOPECAREATA.N-year risk | Females | Males |
---|---|---|
1 | 0.093% | 0.179% |
5 | 0.573% | 1.007% |
10 | 1.445% | 2.59% |
15 | 2.937% | 4.999% |
20 | 5.217% | 8.461% |
Relationships between endpoints
↥Index endpoint: L12_ALOPECAREATA – Alopecia areata
GWS hits: -