Table 2.

Characteristics of participants

Participant	Gender	Centre	Treatment arm	Complete/with drew	Interview format
1	Female	Birmingham	Intervention	Completed	Telephone
2	Male	Birmingham	Control	Completed	Face-to-face
3	Male	Birmingham	Intervention	Completed	Face-to-face
4	Female	Birmingham	Intervention	Withdrew	Telephone
5	Male	Leeds	Intervention	Withdrew	Telephone
6	Female	Leeds	Control	Withdrew	Telephone
7	Female	Birmingham	Intervention	Completed	Face-to-face
8	Female	Birmingham	Intervention	Completed	Face-to-face
9	Male	Birmingham	Control	Completed	Face-to-face
10	Male	Birmingham	Control	Completed	Telephone
11	Male	Birmingham	Intervention	Completed	Telephone
12	Male	Taunton	Intervention	Completed	Telephone
13	Male	Gloucester	Control	Completed	Telephone
14	Female	Bristol	Intervention	Completed	Telephone
15	Male	Bristol	Control	Completed	Telephone
16	Male	Bristol	Intervention	Completed	Telephone
17	Male	Bristol	Control	Withdrew	Telephone
18	Female	Leeds	Intervention	Completed	Telephone
19	Female	Birmingham	Intervention	Completed	Face-to-face
20	Female	Taunton	Intervention	Completed	Telephone