Mitochondrial myopathy

G6_MITOCMY

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 G71.3
  • Cause of death: ICD-10 G71.3

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

143

4. Check minimum number of events

None

143

5. Include endpoints

None

143

6. Filter based on genotype QC (FinnGen only)

143

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
Myopathia mitochondrialis non alibi classificata

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 856 465 387
Only index persons 696 388 308
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 46.83 50.41 42.39
Only index persons 46.69 49.89 42.65

-FinnGen-

Key figures

All Female Male
Number of individuals 143 90 53
Unadjusted period prevalence (%) 0.03 0.03 0.02
Median age at first event (years) 48.15 47.84 48.66

-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
130
Matched controls
1300
Code
Vocabulary
Description
Odds Ratio
-log10(p)
N matched cases
N matched controls
G71.3
ICD-10 Finland
Mitochondrial myopathy, not elsewhere classified
+∞
184.6
129
*
G72.9
ICD-10 Finland
Myopathy, unspecified
460.0
35.8
34
*
Z31.5
ICD-10 Finland
Genetic counselling
18.7
24.9
39
29
R29.8
ICD-10 Finland
Other and unspecified symptoms and signs involving the nervous and musculoskeletal systems
11.0
15.9
31
36
H90.3
ICD-10 Finland
Sensorineural hearing loss, bilateral
6.3
14.4
42
91
G71.9
ICD-10 Finland
Primary disorder of muscle, unspecified
+∞
13.8
13
*
G72.8
ICD-10 Finland
Other specified myopathies
+∞
13.8
13
*
E13.9
ICD-10 Finland
Other specified diabetes mellitus, without complications
143.3
12.7
13
*
R5110
NOMESCO Finland
Evaluation of the need for aids, the testing, fitting and choice of the aid, instruction in use and delivery of it
6.0
11.3
33
70
NXL00
NOMESCO Finland
Biopsy of muscle
119.2
10.6
11
*
AA1BG
NOMESCO Finland
Standard MRI examination of brain with high intensity magnet
6.8
10.6
27
48
R1250
NOMESCO Finland
Evaluation of functional capability
13.8
10.2
17
14
N99
ICPC
Neurological disease other
43.7
10.2
12
*
H02.4
ICD-10 Finland
Ptosis of eyelid
18.6
10.1
15
9
R5130
NOMESCO Finland
Repair work or maintenance done on the aid
22.2
10.0
14
7
Z3229
NOMESCO Finland
Other healthcare associate professional
7.3
9.6
23
37
H35.5
ICD-10 Finland
Hereditary retinal dystrophy
107.5
9.5
10
*
G71.08
ICD-10 Finland
Other muscular dystrophy
+∞
9.5
9
*
H49.4
ICD-10 Finland
Progressive external ophthalmoplegia
+∞
9.5
9
*
FM1EE
NOMESCO Finland
Extensive structural and functional ultrasound examination of heart
3.8
8.6
40
135
XCK00
NOMESCO Finland
Perimetry
8.0
8.6
19
27
L28
ICPC
Limited function/disability (L)
5.2
8.6
27
62
H53.2
ICD-10 Finland
Diplopia
14.1
8.6
14
11
NGA20
NOMESCO Finland
Exploration of soft tissue knee or lower leg, open
+∞
8.4
8
*
E14.9
ICD-10 Finland
Unspecified diabetes mellitus, without complications
35.8
8.2
10
*
R5120
NOMESCO Finland
Preparation of an aid
23.8
8.2
11
5
111
Kela drug reimbursment
Epilepsy and comparable convulsive disorders
9.4
8.1
16
19
Z03.3
ICD-10 Finland
Observation for suspected nervous system disorder
7.2
8.1
19
30
CK2S4
NOMESCO Finland
Plain photography of ocular fundus
7.0
7.9
19
31
DAX00
NOMESCO Finland
Adjustment or review of hearing aid
9.8
7.8
15
17
N03AX14
ATC
levetiracetam; systemic
26.8
7.7
10
*
XF404
NOMESCO Finland
Ambulatory ECG
5.0
7.5
24
56
XCW99
NOMESCO Finland
Other investigative procedure of eye
4.8
7.5
25
61
NJ3CG
NOMESCO Finland
Extensive MRI examination of extremities with median high magnet
84.7
7.5
8
*
C10AX09
ATC
ezetimibe; oral
4.9
7.4
24
57
N03AE01
ATC
clonazepam; systemic
6.4
7.4
19
34
G11.9
ICD-10 Finland
Hereditary ataxia, unspecified
+∞
7.4
7
*
182
Kela drug reimbursment
Brivaracetam, eslikarbazepin, gabapentin, lacosamide, levetiracetam, perampanel, pregabalin, tiagabin and zonisamide
32.0
7.2
9
*
I42.2
ICD-10 Finland
Other hypertrophic cardiomyopathy
32.0
7.2
9
*
DFF30
NOMESCO Finland
Loudness discomfort Level (LDL)
32.0
7.2
9
*
E11.9
ICD-10 Finland
Type 2 diabetes mellitus, without complications
3.7
7.2
33
109
N29
ICPC
Neurological sympt/complt other
42.3
6.8
8
*
NJ3BG
NOMESCO Finland
MRI examination of extremities with high intensity magnet
42.3
6.8
8
*
N28
ICPC
Limited function/disability (N)
24.0
6.8
9
*
AA1CG
NOMESCO Finland
Extensive MRI examination of brain with high intensity magnet
5.4
6.6
19
40
N03AF02
ATC
oxcarbazepine; oral
15.3
6.5
10
7
Z50.8
ICD-10 Finland
Care involving use of other rehabilitation procedures
5.6
6.5
18
36
Z01.0
ICD-10 Finland
Examination of eyes and vision
3.4
6.4
32
113
SPAT1215
SPAT
Assessment of need for medical rehabilitation
11.9
6.4
11
10
E13.8
ICD-10 Finland
Other specified diabetes mellitus, with unspecified complications
+∞
6.3
6
*
G71.8
ICD-10 Finland
Other primary disorders of muscles
+∞
6.3
6
*
A10AB05
ATC
insulin aspart; parenteral (insulins and analog. for injection, fast-acting)
5.8
6.3
17
33
A10AE04
ATC
insulin glargine; parenteral
4.8
6.3
20
47
FM1AE
NOMESCO Finland
Standard cardiac ultrasound examination
3.6
6.2
29
97
G40.9
ICD-10 Finland
Epilepsy, unspecified
10.8
6.2
11
11
CK2X4
NOMESCO Finland
Optical coherence tomography (OCT) of ocular fundus
5.6
6.1
17
34

Mortality – FinRegistry

Association

Association between endpoint G6_MITOCMY and mortality.

Females

Parameter HR [95% CI] p-value
G6_MITOCMY 4.998 [3.54, 7.06] < 0.001
Birth year 0.995 [0.99, 1.0] 0.267

During the follow-up period (1.1.1998 — 31.12.2019), 104 out of 373 females with G6_MITOCMY died.

Males

Parameter HR [95% CI] p-value
G6_MITOCMY 4.33 [2.96, 6.34] < 0.001
Birth year 0.986 [0.98, 1.0] 0.009

During the follow-up period (1.1.1998 — 31.12.2019), 90 out of 317 males with G6_MITOCMY died.

Mortality risk

Mortality risk for people of age

years, who have G6_MITOCMY.

N-year risk Females Males
1 0.585% 0.899%
5 3.166% 5.188%
10 7.96% 12.612%
15 13.614% 22.547%
20 22.641% 35.342%

Relationships between endpoints

Index endpoint: G6_MITOCMY – Mitochondrial myopathy

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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