Version: 1.0.0 | Published: 8 Oct 2024 | Updated: 464 days ago
Patient Episode Dataset for Wales (PEDW)
Dataset
Summary
Citation:
CITATION INCOMPLETE
Documentation
Description:
NHS Wales hospital admissions (Inpatients and daycases) dataset comprising of attendance and clinical information for all hospital admissions: includes diagnoses and operations performed. Includes spell and episode level data.
The data are collected and coded at each hospital. Administrative information is collected from the central PAS (Patient Administrative System), such as specialty of care, admission and discharge dates. After the patient is discharged the handwritten patient notes are transcribed by clinical coder into medical coding terminology (ICD10 and OPCS).
The data held in PEDW is of interest to public health services since it can provide information regarding both health service utilisation and also the incidence and prevalence of disease. However, since PEDW was created to track hospital activity from the point of view of payments for services, rather than epidemiological analysis, the use of PEDW for public health work is not straightforward. For example:
Counts will vary depending on the number of diagnosis fields used e.g. primary only, all fields;
There are a number of different things that can be counted in PEDW e.g. individual episodes of care, admissions, discharges, periods of continuous care (group of episodes), patients or procedures.
When looking at diagnosis or procedures the number will vary depending on whether you look at only in the primary diagnosis / procedure field or if the secondary fields are also included.
Coding practices vary. In particular, coding practices for recording secondary diagnoses is likely to vary for different hospitals. This makes regional variations more difficult to interpret. The validation process led by the Corporate Health Improvement Programme and implemented by Digital Health and Care Wales (DHCW) is aiming to address some of these inconsistencies.
Due to the complexity and pitfalls of PEDW it is recommended that any PEDW requests for public health purposes are discussed with a member of the SAIL team. In turn the SAIL will seek advice from DHCW if required.
This dataset requires additional governance approvals from the data provider before data can be provisioned to a SAIL project.
Coverage
Spatial
Spatial Coverage:
United Kingdom,Wales
Temporal
Start Date:
31 March 1995
End Date:
31 August 2025
Frequency:
Monthly
Provenance
Source:
EPR
Purpose:
Administrative
Collection Situation:
Secondary care - In-patients
Access and Governance
Usage
Condition of Access:
Research-specific restrictions
Condition of Use:
- Project-specific restrictions
- Time limit on use
- User-specific restriction
Resource Creator:
Digital Health and Care Wales (DHCW)
Access
Access Service:
The SAIL Databank is powered by the UK Secure e-Research Platform (UKSeRP). Following approval through safeguard processes, access to project-specific data within the secure environment is permitted using two-factor authentication.
Jurisdictions:
GB-WLS
Data Controller:
SAIL Databank
Access Request Cost:
Data provision is free from SAIL. Overall project costing depends on the number
of people that require access to the SAIL Gateway, the activities that SAIL
needs to complete (e.g. loading non-standard datasets), data refreshes,
analytical work required, disclosure control process, and special case
technological requirements.
Data Processor:
SAIL Databank
Format and Standards
Languages:
en
Formats:
SQL database table
Observations
Statistical Population
Population Description
Population Size
Measured Property
Observation Date
Events
3838725
Count
08 September 2025
Origin
Name:
SAIL Databank (Wales)