Table 2 Schedule of enrollment, interventions, and assessments

From: A randomized controlled trial evaluating the effects of motivational interviewing in new hearing aid users (MI-HAT): study protocol for a randomized controlled trial

Timepoint	Study period
	Enrollment		Allocation		Post-allocation				Close-out
	−t₁ −48 months to −1 day		t₀ Day 0		t₁ 1 month		t₂ 3 months		t₃ 6 months		t₄ 12 months
	T^a	C^b	T^a	C^b	T^a	C^b	T^a	C^b	T^a	C^b	T^a	C^b
Enrollment:
Eligibility screen	X	X
Informed consent	X	X
Allocation			X	X
Intervention:
One-on-one MI					X
Standard care						X	X	X	X	X	X	X
Assessments:
Baseline assessment
PTA			X	X
WRS			X	X
Primary outcomes
Mean hours hearing aid used					X	X	X	X	X	X	X	X
IOI-HA score					X	X	X	X	X	X	X	X

T Treatment group, C Control group, MI Motivational interviewing, PTA Pure tone audiometry, WRS Word recognition score, IOI-HA International Outcome Inventory for Hearing Aids

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ISSN: 1745-6215

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