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.
Endpoint definition
↥
Endpoint definition steps |
FinnGen |
|---|---|
Phenotype data |
429209 |
1. Apply sex-specific ruleNone |
429209 |
2. Check conditionsNone |
429209 |
3. Check pre-conditions, main-only, mode, registry filtersRegistry filters:
2 out of 7 registries used, show all original rules. |
841 |
4. Check minimum number of eventsNone |
841 |
5. Include endpointsNone |
841 |
6. Filter based on genotype QC (FinnGen only) |
797 |
Control definitions (FinnGen only)
Control exclude
E4_METABOLIA
Extra metadata
Level in the ICD hierarchy
4
First used in FinnGen datafreeze
DF2
Similar endpoints
↥List of similar endpoints to
Lactose intolerance, other/unspecified
based on the number of shared cases.
Broader endpoints:
- Lactose intolerance
- Metabolic disorders
- Endocrine, nutritional and metabolic diseases
- Any event in hilmo or specialist outpatient
Narrower endpoints:
None
Case counts by codes
↥
Summary Statistics
↥-FinRegistry-
Key figures
| All | Female | Male | |
|---|---|---|---|
| Number of individuals | |||
| Whole population | 10993 | 6393 | 4499 |
| Only index persons | 8968 | 5282 | 3686 |
| Unadjusted period prevalence (%) | |||
| Whole population | 0.16 | 0.18 | 0.13 |
| Only index persons | 0.17 | 0.19 | 0.14 |
| Median age at first event (years) | |||
| Whole population | 34.08 | 43.09 | 20.61 |
| Only index persons | 30.81 | 38.17 | 20.25 |
-FinnGen-
Key figures
| All | Female | Male | |
|---|---|---|---|
| Number of individuals | 797 | 535 | 262 |
| Unadjusted period prevalence (%) | 0.20 | 0.23 | 0.14 |
| Median age at first event (years) | 40.55 | 39.73 | 42.22 |
-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
Mortality – FinRegistry
↥Relationships between endpoints
↥Index endpoint: E4_LACTONAS – Lactose intolerance, other/unspecified
GWS hits: 1
Loading Relationships table