Effectiveness of a group-based psychosocial program to prevent depression and anxiety in older people attending primary health care centres: a randomised controlled trial

Table 1 Participants Timeline

	STUDY PERIOD
	Enrolment	Allocation	Post-allocation
TIMEPOINT**	-t₁	0	t₁ baseline	t ₂ intervention	t ₃	t ₄
ENROLMENT:
Eligibility screen	X
Informed consent	X
Identification of “key-persons” in PHC and meetings together with representatives from the research group		X
Allocation		X
INTERVENTIONS:
Psychosocial intervention				X
ASSESSMENTS:
EMPAM	X
CIDI 2.1			X			X
MINI			X			X
PHQ-9			X		X	X
SCL-90-R			X		X	X
MSPSS			X		X	X
AUDIT			X		X	X
PHI			X		X	X
ULS-3			X		X	X
Sociodemographic questionnaire			X		X	X

t ₁ baseline, t ₂ intervention period, t ₃ 18 week follow up, t ₄ 36 week follow up

ISSN: 1471-2318