nhs e-lab nottingham, september 2010 john ainsworth...
TRANSCRIPT
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Our Approach
• Enforce information governance through technology wherever possible
• Designed for minimum data release• Only release items that user “Needs to know”• NHS is in control of data at all times; NHS can
choose what to make available through the e-Lab
• Data is stored in a repository hosted on a server inside the NHS Trust
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Information Governance
• Technical safeguards– Access Control based on privileges– Audit trails & monitoring– Anonymisation and Inference control
• Operational– Users sign up to terms and conditions of use; bound by
employment contracts– Auditing of users– Standard Operating Procedures
• Governance Board + NRES Research Database Approval
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NHS Trust
E-Lab
PseudonymisedData
Repository
Gov
erna
nce
Users
EHR
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ClinicalData
Non-clinicalData
ClinicalData
IntegratedEHR
PseudonymisedData
Repository
Non-clinicalData
2. Pseudonymisation
1. Integration of primary and secondary care
records
Trust Systems Trust e-Lab
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User DataStore
4. Anonymisation and inference
control
5. Storage
6. Data analysis and visualization
Access Control
e-Lab Tools
1 .User logs on and submits query
2. Access control module authorizes
request
3. Perform Data Query
PsuedonymisedRepository
Trust e-Lab
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Data Extraction
• Copies data from one database to another• Performs transformations on data fields e.g.– Postcode => LLSOA– Postcode => Area– Date = > year– Date => year and quartile– * => SHA-1 + user defined salt– * => RSA public-private key encryption– * => random 32-bit integer
• Plug-in architecture for transformers
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Pseudonymisation
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Data Extraction
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Data Extraction
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Data Extraction