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Table 4 Cost per additional responding or consented patient from first invitation letter by trial a

From: Does offering an incentive payment improve recruitment to clinical trials and increase the proportion of socially deprived and elderly participants?

  Increase in positive response with incentive Cost per additional patient Increase in consented patients with incentive Cost per additional consented patient
Overall 6.9% £1,549 5.1% £1,961
FAST 12.0% £933 13.1% £763
SCOT 8.5% £1,276 6.2% £1,613
PATHWAY 1 −4.0% N/A −2.0% N/A
PATHWAY 2 1.4% £7,243 −4.3% N/A
PATHWAY 3 8.7% £1,249 4.2% £2,381
  1. aFAST, Febuxostat versus Allopurinol Streamlined Trial; N/A, Not applicable; PATHWAY, Prevention and Treatment of Hypertension with Algorithm Guided Therapy, British Heart Foundation–funded trials; SCOT, Standard care versus Celecoxib Outcome Trial.