Recruiting hard-to-reach pregnant women at high psychosocial risk: strategies and costs from a randomised controlled trial

Table 5 Resource and costs for recruitment

Cost of recruitment
Number of referrals received	973
Total cost of generating referrals	£128,185
Cost per referral	£132
Number of randomised participants	485
Total cost of recruiting referred participants	£54,790
Total cost of recruitment	£182,975
Cost per randomised participant	£377
Resource for recruiting referred participants
Mean number of contacts required to arrange baseline appointments^a	2.3
Completed baseline appointments	488
Failed^b baseline appointments	96
Cancelled/rescheduled baseline appointments	195
Additional baseline appointment to complete data collection	6

^aIncludes contact with referrals who were not recruited to the study
^bParticipant was not at home or did not answer the door when research staff visited for a scheduled appointment

ISSN: 1745-6215