People with rare diseases, especially multiples, must be reasonably easy to deanonymise. Also joining the data with newspaper reports of crimes (perhaps only ones that are pertinent are mentioned, eg harassment of hospital staff) or hospitalisations would seem likely to deanonymise quite a few records.
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I await the shit storm when a public figures medical records are mined by the media divulging something controversial.
People with rare diseases, especially multiples, must be reasonably easy to deanonymise. Also joining the data with newspaper reports of crimes (perhaps only ones that are pertinent are mentioned, eg harassment of hospital staff) or hospitalisations would seem likely to deanonymise quite a few records.
Post code. Date of Birth. Gender.
What more do you need?