Table 5 Origin of identified patients and general practice contacts, divided by search strategy

Number of patients

%

I. Free text

II. ICPC-1 code

III. Diagnostic test code

X

–

–

610

26.4

–

X

–

62

2.7

–

–

X

331

14.3

X

X

–

801

34.7

–

X

X

4

0.2

X

–

X

325

14.1

X

X

X

178

7.7

Total

2311

100

Search strategy

Number of contacts

%

I. Free text

II. ICPC-1 code

III. Diagnostic test code

X

–

–

1023

27.8

–

X

–

182

4.9

–

–

X

797

21.7

X

X

–

1093

29.7

–

X

X

40

1.1

X

–

X

427

11.6

X

X

X

119

3.2

3681

100