This dataset presents the crude mortality rate from acute myocardial infarction (AMI) among individuals under the age of 75. Acute myocardial infarction, commonly known as a heart attack, is a critical cardiovascular condition that can lead to premature death if not promptly treated. The dataset captures the number of deaths where AMI is recorded as the primary cause, providing valuable insight into the burden of this condition on the population and supporting efforts to monitor and reduce early mortality from cardiovascular diseases.
Rationale
The primary aim of this indicator is to support the reduction of premature mortality from acute myocardial infarction in individuals under 75 years of age. Monitoring this metric helps public health authorities and healthcare providers assess the effectiveness of prevention, early detection, and treatment strategies for cardiovascular disease.
Numerator
The numerator is defined as the number of deaths where acute myocardial infarction is recorded as the primary condition, identified using ICD-10 codes I21–I22. This data is sourced from the national Death Register.
Denominator
The denominator is the total population under the age of 75, based on figures from the 2021 Census. This allows for the calculation of a crude rate per 100,000 population.
Caveats
There are no specific caveats noted for this dataset. However, as with all mortality data, accuracy depends on the correct recording of cause of death and completeness of registration data.
External References
Specification for AMI Mortality Indicator (NHS Digital)
Localities Explained
This dataset contains data based on either the resident locality or registered locality of the patient, a distinction is made between resident locality and registered locality populations:
- Resident Locality refers to individuals who live within the defined geographic boundaries of the locality. These boundaries are aligned with official administrative areas such as wards and Lower Layer Super Output Areas (LSOAs).
- Registered Locality refers to individuals who are registered with GP practices that are assigned to a locality based on the Primary Care Network (PCN) they belong to. These assignments are approximate—PCNs are mapped to a locality based on the location of most of their GP surgeries. As a result, locality-registered patients may live outside the locality, sometimes even in different towns or cities.
This distinction is important because some health indicators are only available at GP practice level, without information on where patients actually reside. In such cases, data is attributed to the locality based on GP registration, not residential address.
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