Comparison of explicit values clarification method (VCM), implicit VCM and no VCM decision aids for men considering prostate cancer screening: protocol of a randomized trial

Table 1 Schedule of enrolment, interventions, and assessments

	STUDY PERIOD
	Enrolment	Allocation	Post-allocation			Close-out
TIMEPOINT**	-t₁ 2 weeks before	0 session	t₁ session	t₂ session	t₃ session	t₄ 6 months later
ENROLMENT:
Eligibility screen	X
Informed consent	X
Allocation		X
INTERVENTIONS:
*[Decision aid without VCM]*				X
*[Decision aid with implicit VCM]*				X
*[Decision aid with explicit VCM]*				X
ASSESSMENTS:
*[baseline variables]*			X
*[Screening intention]*			X		X
*[Decisional conflict scale]*					X
*[Self-reported PSA screening]*						X