Version: 1.0.0 | Published: 7 Nov 2025 | Updated: 29 days ago
North West London Patient Index (NWL PI)
Dataset
Summary
Population Size:
2684730
Publication Date:
18 December 2019
Documentation
Associated Media:
Description:
When a patient or service user is treated or cared for, information is collected which supports their treatment. This information is also useful to commissioners and providers of NHS-funded care for 'secondary' purposes - purposes other than direct or 'primary' clinical care - such as:
- Healthcare planning
- Commissioning of services
- National Tariff reimbursement
- Development of national policy
SUS is a secure data warehouse that stores this patient-level information in line with national standards and applies complex derivations which support national tariff policy and secondary analysis.
Access to SUS is managed using Role-Based Access Control (RBAC) which grants appropriate access levels to identifiable, anonymised or pseudonymised data based on the users job role.
In Pipeline:
Not available
Coverage
Spatial:
- United Kingdom
- England
- London
- Brent
- Ealing
- Hammersmith and Fulham
- Harrow
- Hillingdon
- Hounslow
- Kensington and Chelsea
- Westminster
Typical Age Range Min:
0
Typical Age Range Max:
150
Material Type:
None/not available
Follow Up:
> 10 Years
Pathway:
This is the patient index table generated from primary care registrations. Each
patient will have an unique patient key that can be used to link to all other
metadata available through Discover-NOW hub
Provenance
Origin
Purpose:
- Administrative
- Care
- Other
Dataset Type:
Health and disease
Dataset Sub-Type:
Not applicable
Source:
EPR
Collection Source:
Primary care - Clinic
Image Contrast:
Not stated
Temporal
Publishing Frequency:
Biweekly
Distribution Release Date:
18 December 2019
Start Date:
01 January 2015
Time Lag:
1-2 weeks
Accessibility
Access
Access Rights:
Access Service Category:
TRE/SDE
Access Service:
Researchers will have access to a VDI environment with a specific username and
password. The researchers will get access to the datasets that is present in the
hub's catalogue and would be able to carry out their research within the safe
haven. There are restrictions applied which prevents the researchers from taking
data out of the safe haven, once the research/analysis is completed the admin
team will need to be contacted for taking the analysis off the safe haven.
Access Request Cost:
In Progress
Delivery Lead Time:
1-2 months
Data Controller:
Joint data controller model across North West London
Data Processor:
North West London Integrated Care Board (NWL ICB) North East London Integrated
Care Board (NEL ICB) North of England Commissioning Support Unit (NECS)
Jurisdiction:
United Kingdom of Great Britain and Northern Ireland
Usage
Data Use Limitation:
No restriction
Data Use Requirements:
- Collaboration required
- Institution-specific restrictions
- Project-specific restrictions
- Time limit on use
- User-specific restriction
Resource Creator:
- NHS NWL ICS
- London SDE
Format and Standards
Vocabulary Encoding Scheme:
OTHER
Conforms To:
LOCAL
Language:
English
Format:
- Excel
- SQL
- Tableau
- R
Enrichment and Linkage
Investigations:
Publication About Dataset:
Bottleet al. BMC Medical Informatics and Decision Making (2020) 20:71 https://doi.org/10.1186/s12911-020-1082-7
Derived From
PID
Title
URL
Long Term Conditions Electronic Frailty Index Q-Admissions Patient Segments Risk Segments
Linkable Datasets
PID
Title
URL
This can be linked to: Accident and Emergency Admitted Patient Care Outpatient Care High Cost drugs Primary care events Primary care prescriptions Adult social care Mental Health Community
Observations
Statistical Population
Population Description
Population Size
Measured Property
Observation Date
Persons
Registered population
2743697
count
20 October 2022
Persons
Population
2684730
Count
08 December 2020
Origin
Name:
NWL Data Catalogue