Congenital myopathies

G6_CONMYOP

central core myopathy: An inherited congenital myopathic condition characterized by weakness and hypotonia in infancy and delayed motor development. Muscle biopsy reveals a condensation of myofibrils and myofibrillar material in the central portion of each muscle fiber. (Adams et al., Principles of Neurology, 6th ed, p1452)

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Endpoint definition

Endpoint definition steps

FinnGen

Phenotype data

520210

1. Apply sex-specific rule

None

520210

2. Check conditions

None

520210

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

Registry filters:

  • Hospital discharge: ICD-10 G71.2
  • Hospital discharge: ICD-9 3590A
  • Cause of death: ICD-10 G71.2
  • Cause of death: ICD-9 3590A

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

65

4. Check minimum number of events

None

65

5. Include endpoints

None

65

6. Filter based on genotype QC (FinnGen only)

65

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
G71
Name in latin
Myopathiae congenitae

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 713 322 384
Only index persons 528 245 283
Unadjusted period prevalence (%)
Whole population 0.01 0.01 0.01
Only index persons 0.01 0.01 0.01
Median age at first event (years)
Whole population 40.42 42.53 38.30
Only index persons 39.02 40.01 38.17

-FinnGen-

Key figures

All Female Male
Number of individuals 65 35 30
Unadjusted period prevalence (%) 0.01 0.01 0.01
Median age at first event (years) 45.01 39.27 51.72

-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

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
59
Matched controls
591
Code
Vocabulary
Description
Odds Ratio
-log10(p)
N matched cases
N matched controls
G71.28
ICD-10 Finland
Other congenital myopathy
+∞
32.3
28
*
G72.9
ICD-10 Finland
Myopathy, unspecified
+∞
24.7
22
*
G71.25
ICD-10 Finland
Congenital muscular dystrophy NOS
+∞
22.3
20
*
Z31.5
ICD-10 Finland
Genetic counselling
36.0
14.4
18
7
G71.08
ICD-10 Finland
Other muscular dystrophy
+∞
14.1
13
*
G71.9
ICD-10 Finland
Primary disorder of muscle, unspecified
+∞
14.1
13
*
J96.1
ICD-10 Finland
Chronic respiratory failure
33.1
8.8
11
*
3590A
ICD-9 Finland
Muscular dystrophies and other myopathies, Congenital hereditary muscular dystrophy
+∞
8.5
8
*
33098
ICD-8 Finland
Hereditary neuromuscular disorders, Alii definiti
+∞
8.5
8
*
N99
ICPC
Neurological disease other
+∞
8.5
8
*
L28
ICPC
Limited function/disability (L)
7.5
7.8
19
35
G71.18
ICD-10 Finland
Other myotonic disease
+∞
7.4
7
*
G71.8
ICD-10 Finland
Other primary disorders of muscles
+∞
7.4
7
*
G71.21
ICD-10 Finland
Fibre type disproportion
+∞
7.4
7
*
SPAT1229
SPAT
Assessment of need for aid
11.5
7.2
13
14
N03AE01
ATC
clonazepam; systemic
13.2
6.6
11
10
Z3229
NOMESCO Finland
Other healthcare associate professional
8.4
6.5
14
21
N28
ICPC
Limited function/disability (N)
30.3
6.4
8
*
G71.02
ICD-10 Finland
Muscular dystrophy facioscapulohumeral
+∞
6.4
6
*
G71.00
ICD-10 Finland
Muscular dystrophy benign [Becker]
+∞
6.4
6
*
SPAT1230
SPAT
Aid fitting and borrowing and monitoring of use
5.5
6.2
19
47
R29.8
ICD-10 Finland
Other and unspecified symptoms and signs involving the nervous and musculoskeletal systems
7.6
6.2
14
23

Mortality – FinRegistry

Association

Association between endpoint G6_CONMYOP and mortality.

Females

Parameter HR [95% CI] p-value
G6_CONMYOP 5.957 [3.77, 9.41] < 0.001
Birth year 0.995 [0.99, 1.0] 0.315

During the follow-up period (1.1.1998 — 31.12.2019), 76 out of 239 females with G6_CONMYOP died.

Males

Parameter HR [95% CI] p-value
G6_CONMYOP 4.163 [2.81, 6.18] < 0.001
Birth year 0.984 [0.97, 0.99] 0.002

During the follow-up period (1.1.1998 — 31.12.2019), 92 out of 270 males with G6_CONMYOP died.

Mortality risk

Mortality risk for people of age

years, who have G6_CONMYOP.

N-year risk Females Males
1 0.533% 0.783%
5 3.124% 4.309%
10 8.428% 10.688%
15 15.743% 19.355%
20 26.652% 31.473%

Relationships between endpoints

Index endpoint: G6_CONMYOP – Congenital myopathies

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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