From: Who says “no” to participating in stroke clinical trials and why: an observational study from the Vancouver Stroke Program
Antithrombotic agent
Surgery
Device
Overall
Consented (n (%))
52 (47)
16 (41)
74 (87)
142 (60)
Refused (n (%))
59 (53)
23 (59)
11 (13)
93 (40)
Approached (n)
111
39
85
235