Table 1.

Schedule of enrollment, interventions, and assessments

Time point	Study Period
	Enrolment	Allocation	Post-allocation
	-t 1		t 1	t 2	t 3	t 4	t 5	t 6	t 7
Enrolment:
Eligibility screen	X
Informed consent	X
Randomization and allocation		X
Interventions:
SSC group			X
TC group			X
Assessments:
State-Trait Anxiety Inventory, STAI				X		X
Salivary cortisol					X
Brazelton Neonatal Assessment Scale, BNAS						X
Neuroimaging							X
Infant Neurological International Battery, INFANIB							X
Paternal Postnatal Attachment Scale, PPAS								X	X

t₁ = During hospitalization

t₂ = 1 day to 3 days after birth

t₃ = 10-15 days after birth

t₄ = 37 weeks of corrected age or before discharge

t₅ = 38-42 weeks of corrected age

t₆ = 4 months after discharge

t₇ = 6 months after discharge