Table 2.

Pupil recruitment in the pilot phase

	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%)

^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