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Table 2 Pupil recruitment in the pilot phase

From: Set up and assessment of progression criteria for internal pilots: the Brushing RemInder 4 Good oral HealTh (BRIGHT) trial example

 

Target to randomise

Invited

Consented (% of invited)

Randomised (% of target)

Average per year group

60

133

55 (41%)

54 (90%)a

Total across all schools

1200

2653

1090 (41%)

1073 (89%)

  1. aThe target average recruitment was 60 pupils per year group, and the progression criteria required reaching 80% of this, so an average of 48 pupils per year group across all schools