AHAH (the index of ‘Access to Healthy Assets and Hazards’) is a multi-dimensional index developed by the CDRC for Great Britain measuring how ‘healthy’ neighbourhoods are. The AHAH index combines indicators under four different domains of accessibility:
- Retail environment (access to fast food outlets, pubs, tobacconists, gambling outlets),
- Health services (access to GPs, hospitals, pharmacies, dentists, leisure services),
- Physical environment (Blue Space, Green Space - Passive), and
- Air quality (NO₂, PM10, SO₂).
Measurement data and deciles for the overall index, 4 domains and 14 inputs are produced for Lower Level Super Output Areas (LSOAs) for England and Wales, and Data Zones (DZ) for Scotland. Distances shown for some of the measurement data are means of the time (in minutes) for driving by car along the established road network, between the population weighted centroid of each postcode contained within each statistical geographical unit, and the actual location of the outlet/service. Please see the Sci Data paper (see Related Content below) for more information - note this paper is about Version 1 of the data.
Version 4 is updated including the most up-to-date data for 2024. AHAH Version 3 (released 2022), Version 2 (released 2017) and Version 1 (released 2016), these can be found on the previous versions page (see links below).
For detailed description of the columns contained within the data, see the Variable Dictionary; and for an overview of the characteristics of the data, see the Data Summary. These files can be downloaded from the bottom of this page.
Quality, Representation and Bias
The data are from multiple data sources. Each were selected following review since they presented the best quality or lowest bias data sources. We checked individual data sources for bias using local checks, however we did not find any issues. All external datasets are validated by their data producer as well.
Field | Value |
---|---|
Source | Office of National Statistics (ONS), NHS England, NHS Scotland, NHS Wales, OpenStreetMap, Sentinel Satellite, Scottish Government, Local Data Company (LDC), Department of Environment, Food and Rural Affairs (DEFRA) |
Attribution | Data provided by the Consumer Data Research Centre, an ESRC Data Investment: ES/L011840/1, ES/L011891/1 |
Rows | 42648 |
Columns | 58 |
Data and Resources
Field | Value |
---|---|
Modified | 2024-11-12 |
Release Date | 2022-09-07 |
Spatial / Geographical Coverage Location | Great Britain |
Temporal Coverage | January 2019 to July 2024 |
Granularity | LSOA21CD, DZ11CD |
Author | |
Contact Name | Dr Cillian Berragan |
Contact Email | |
Public Access Level | Public |