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Table 4 Summary of reasons for refusal across all recruiting trials, in absolute numbers and as a percentage of total refusals (n = 93)

From: Who says “no” to participating in stroke clinical trials and why: an observational study from the Vancouver Stroke Program

Reason Antithrombotic Surgical Device n (%)
Concern about receiving study drug/device 24 0 2 26 (28)
Not interested in participating in study 9 7 5 21 (23)
Concern about inability to choose intervention vs control 3 9 0 12 (13)
Unable to commit to follow-up appointments 6 4 1 11 (12)
Too stressed or busy 2 1 1 4 (4)
Concerns regarding eligibility for travel insurance 3 0 0 3 (3)
Indecision about participation 2 0 0 2 (2)
Family refusal on patient’s behalf 2 0 0 2 (2)
Multiple medical comorbidities 0 1 0 1 (1)
In denial about medical condition 1 0 0 1 (1)
Unknown 7 1 2 10 (11)
Total 59 23 11 93 (100)