Recruiting faith- and non-faith-based schools, adolescents and parents to a cluster randomised sexual-health trial: experiences, challenges and lessons from the mixed-methods Jack Feasibility Trial

Table 2 Pupil recruitment by school type

	Integrated		Controlled secondary	Catholic maintained secondary		Controlled grammar	Voluntary Catholic grammar	Voluntary other-managed grammar	All
Number of eligible pupils	132	121	91	98	149	123	155	158	1027
Number of parental withdrawals of consent	12	11	2	2	9	10	6	18	70
Number of pupil opt-outs at baseline	17	10	0	2	2	1	0	0	32
Number of pupils absent at baseline^a	0	24	5	6	2	40	1	16	94
Number of pupils recruited at baseline	103	76	84	88	136	72	148	124	831
Pupil recruitment rate at baseline^b	78.0 %	62.8 %	92.3 %	89.8 %	91.3 %	59.3 %	95.5 %	79.1 %	80.9 %

ISSN: 1745-6215