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Table 2 An example of the CRIS dictionary

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

ePJS Source fields

 

First name

Joe

**Middle name

(blank)

Second name

Bloggs

*Date of birth

20/08/1987

Trust ID

12–34–56

Post Code

SW9 6TJ

**Nick Name

(blank)

**Key Contact First Name

(blank)

Key Contact Last Name

O’Connell

CRIS PI Dictionary list derived from the source field above

 

Joe

 

Bloggs

 

20/08/1987

 

20/08/’87

 

20–08–1987

 

20–08–87

 

20.08.1987

 

20.08.87

 

20.8.87

 

20th Aug 1987

 

20th Aug ‘87

 

20th of August 1987

 

20th of Aug 1987

 

12–34–56

 

123456

 

12 34 56

 

SW9 6TJ

 

SW96TJ

 

Connell

 
  1. *There would be many more options of recording the date of birth; a non-exhaustive list is provided here.
  2. **The cells show no information was entered in these fields and hence are not included in the CRIS PI dictionary. Note that these fields are patient identifier fields that sometimes do not get filled in the source.