Table 1.

Participant recruitment

	Total	Intervention	Control
Patients identified as potentially eligible by clinical record searching	5144	1303	3841
Patients invited (following GP screening of searches for ineligible patients)	1623	434	1189
Patients consenting to study	530	138	392
Patients with complete follow-up data	527	137	390
Patients with incomplete or no follow-up data	3	1	2
Patients recruited as % of those potentially eligible	10.3%	10.6%	10.2%
Patients recruited as % of those invited	32.7%	31.8%	33.0%

GP, general practitioner.