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Table 11 Instance of a potential breach: 3 or more PIs appearing for a single patient

From: Development and evaluation of a de-identification procedure for a case register sourced from mental health electronic records

Patient Type of PI Year of document Reason for appearance on CRIS Confidence in re-identification
1 Patient third line of address 2006 Misspellings Low: Outdated information, and cannot be verified, and incorrect spellings [22]
Patient post code    
Patient last name