Table 1 Participant characteristics

Male

12

8

5

Female

3

7

9

Age

 20s

2

0

0

 30s

4

2

1

 40s

5

3

4

 50s

3

7

4

 Not stated

1

3

5

Ethnicity

 White British

9

14

12

 Black African

2

1

1

 Black Caribbean

1

0

0

 African Caribbean

0

0

1

 Asian

2

0

0

 Indian

1

0

0

Pre-existing health condition

 Disability or long-term condition

8

2

0

 None

7

13

14

Prison region

 London & South East

6

1

3

 South West

2

0

1

 Midlands

0

0

3

 East Midlands

1

0

1

 West Midlands

1

5

1

 North

0

2

1

 North West

2

2

2

 North East

3

0

1

 East

0

2

1

 Not known

0

2

0

Sentence length

 1 y or less

1

–

–

 1–2 y

5

–

–

 3–4 y

2

–

–

 4–5 y

2

–

–

 6–9 y

0

–

–

 10–14

4

–

–

 Not known

1

–

–

Length of service

  < 4

–

2

3

 4–10

–

2

0

  > 10

–

5

1

 Not stated

–

5

10