Table 2.

Schedule of enrollment, interventions and assessments

Timepoint	Description	Weeks after CI activation
		#	−4	−3	0	1	2	3	4	5	6	7	8	10	12	16	20	26	30	34	52
Enrollment
Clinical pre-assessment	CI screening selection	X
Informed consent		X
Surgery			X
CBCT scan				X
Interventions
CI experimental phase					X	X	X	X	X	X	X	X	X	X	X	X	X	X
HA experimental phase																			X
Clinical fitting phase																				X	X
Assessments
Primary outcomes
Patient preference	10-point VAS				X	X	X	X	X	X	X	X	X	X	X	X	X	X		X	X
Word recognition	CNC	X			X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
Sentence recognition in quiet	Dutch Matrix Sentence Test				X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
Secondary outcomes
Sentence recognition in noise	Dutch Matrix Sentence Test				X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
Spatial hearing	SSPIN													X				X	X	X
Listening effort									X						X			X	X	X	X
Loudness scaling	ACALOS								X						X			X	X	X
Frequency selectivity	SMRT								X						X			X		X
Questionnaires	SSQ-12, HUI-3, ICECAP-A			X														X		X	X
	Sound quality							X							X			X		X	X

CBCT cone-beam computed tomography, CI cochlear implant, HA hearing aid, VAS visual analogue scale, CNC consonant-nucleus-consonant, SSPIN spatial speech perception in noise, ACALOS Adaptive Categorical Loudness Scaling, SSQ-12 Speech, Spatial and Qualities of Hearing, HUI-3 Health Utilities Index-3, ICECAP-A Icepop Capability Measure for Older People