Table 1 Characteristics of participants (n = 26) and practices (n = 19)

Participant characteristic

Variable

Number of participants

Job Role

GP

9

Practice Nurse

13

Practice Manager

3

Receptionist

1

Gender

Male

5

Female

23

Age

30–40

3

41–50

6

51–60

6

Unknown or did not wish to declare

11

Treating young people or providing sexual health services

None

7

Some

6

Heavily involved

13

Practice characteristic

Variable

Number of participants

Local Authority

Devon

3

Kingston

4

Luton

2

North Somerset

5

York and North Yorkshire

10

Lincolnshire

2

Phase of implementation (stepped wedge design) [15]

1

4

2

19

3

3

Enhanced service

Yes

14

No

8

Unknown

4

Chlamydia testing rate higher than England median (pre-intervention)

Yes

19

No

7

Number of GPs employed

2–5

8

6–10

5

11–15

4

16+

9