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This is a non-core endpoint: only basic statistics are computed.

Secondary lactase deficiency

E4_LACTOSEC

lactose intolerance: Inability to fully digest and absorb lactose due to limited or no lactase activity in the small intestine. Congenital intolerance is inherited following an autosomal recessive pattern but is rare. It is more often due to a gradual decline of lactase production in adulthood following the ingestion of fewer lactose-containing foods or secondary to an intestinal mucosal brush-border injury. Prevalence is highest among Asians, Native Americans and Africans. Clinical signs include abdominal cramping, bloating, flatulence and diarrhea following the dietary intake of lactose.

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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 E73.1
  • Cause of death: ICD-10 E73.1

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

42

4. Check minimum number of events

None

42

5. Include endpoints

None

42

6. Filter based on genotype QC (FinnGen only)

39

Control definitions (FinnGen only)

Control exclude E4_METABOLIA

Extra metadata

Level in the ICD hierarchy 4
First used in FinnGen datafreeze DF2
Parent code in ICD-10 E73
Name in latin Deficientia lactasae secundaria

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 449 259 189
Only index persons 412 248 164
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 21.74 28.44 12.62
Only index persons 23.45 29.66 14.06

-FinnGen-

Key figures

All Female Male
Number of individuals 39 26 13
Unadjusted period prevalence (%) 0.01 0.01 0.01
Median age at first event (years) 44.62 38.85 56.15

-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

Not a core endpoint, no data to show.

Mortality – FinRegistry

Association

Association between endpoint E4_LACTOSEC and mortality.

Females

No data

Males

No data

Mortality risk

Mortality risk for people of age

years, who have E4_LACTOSEC.

N-year risk Females Males
1 No data No data
5 No data No data
10 No data No data
15 No data No data
20 No data No data

Relationships between endpoints

Index endpoint: E4_LACTOSEC – Secondary lactase deficiency

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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