Table 1.

Breakdown of the qualitative sample by site and level of participation (N=60).

Sites	App users who had agreed to be contacted, n (%)	Refusals or noncontactable users, n (%)a	Users who were interviewed, n (%)b	Users who attended the focus group, n (%)c	Total number of users who were interviewed or attended the focus group, n (%)d
Northwest	10 (17)	8 (13)	2 (3)	0 (0)	2 (3)
Midlands	38 (63)	26 (43)	4 (7)	8 (13)	12 (20)
Southeast	12 (20)	9 (15)	3 (5)	0 (0)	3 (5)

^aTotal=43/60, 72%.

^bTotal=9/60, 15%.

^cTotal=8/60, 13%.

^dTotal=17/60, 28%.