Myasthenia gravis

G6_MYASTHENIA

Myasthenia gravis: Myasthenia gravis (MG) is a rare, clinically heterogeneous, autoimmune disorder of the neuromuscular junction characterized by fatigable weakness of voluntary muscles.

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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 G70.0#
  • Hospital discharge: ICD-9 3580
  • Hospital discharge: ICD-8 7330
  • Cause of death: ICD-10 G70.0#
  • Cause of death: ICD-9 3580
  • Cause of death: ICD-8 7330
  • KELA reimbursements: KELA codes 108

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

525

4. Check minimum number of events

None

525

5. Include endpoints

None

525

6. Filter based on genotype QC (FinnGen only)

504

Control definitions (FinnGen only)

Control exclude G6_MYONEU

Extra metadata

Level in the ICD hierarchy 3
First used in FinnGen datafreeze DF2
Parent code in ICD-10 G70

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 3518 1791 1681
Only index persons 2942 1550 1392
Unadjusted period prevalence (%)
Whole population 0.05 0.05 0.05
Only index persons 0.06 0.06 0.05
Median age at first event (years)
Whole population 56.01 50.07 62.40
Only index persons 54.55 48.24 61.57

-FinnGen-

Key figures

All Female Male
Number of individuals 504 266 238
Unadjusted period prevalence (%) 0.11 0.10 0.12
Median age at first event (years) 54.28 47.30 62.09

-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 G6_MYASTHENIA and mortality.

Females

Parameter HR [95% CI] p-value
G6_MYASTHENIA 1.455 [1.19, 1.78] < 0.001
Birth year 0.992 [0.98, 1.0] 0.096

During the follow-up period (1.1.1998 — 31.12.2019), 200 out of 993 females with G6_MYASTHENIA died.

Males

Parameter HR [95% CI] p-value
G6_MYASTHENIA 1.196 [1.01, 1.42] 0.04
Birth year 0.988 [0.98, 1.0] 0.013

During the follow-up period (1.1.1998 — 31.12.2019), 269 out of 1043 males with G6_MYASTHENIA died.

Mortality risk

Mortality risk for people of age

years, who have G6_MYASTHENIA.

N-year risk Females Males
1 0.116% 0.157%
5 0.643% 1.359%
10 1.895% 3.372%
15 3.606% 6.583%
20 6.362% 11.147%

Relationships between endpoints

Index endpoint: G6_MYASTHENIA – Myasthenia gravis

GWS hits: 1

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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