Table 2.

Univariable logistic regression between predictor variables and tinnitus recovery (results of pooled analyses after multiple imputation) (n=87)

Predictor	OR (95% CI)	P values
Demographics
Age	1.033 (0.997 to 1.071)	0.075
Gender
Female	Ref	Ref
Male	0.750 (0.317 to 1.777)	0.513
Deafness-related factors
Duration of deafness-operated ear	1.004 (0.982 to 1.027)	0.738
Preoperative CVC score	0.986 (0.971 to 1.003)	0.101
Tinnitus-related factors
Tinnitus duration	0.964 (0.912 to 1.019)	0.193
Tinnitus severity
Mild	Ref	Ref
Moderate	0.776 (0.118 to 5.112)	0.787
Severe	0.690 (0.086 to 5.573)	0.720
Localisation tinnitus
Unilateral	Ref	Ref
Bilateral	0.358 (0.139 to 0.919)	0.033
Surgery-related factors
Follow-up duration	1.100 (0.944 to 1.283)	0.223
Localisation cochlear implant versus tinnitus
Cochlear implant contralateral to tinnitus side	Ref	Ref
Cochlear implant ipsilateral to tinnitus side	0.381 (0.077 to 1.896)	0.239
Unilateral cochlear implant, bilateral tinnitus	0.217 (0.059 to 0.790)	0.021
Surgical approach
Cochleostomy	Ref	Ref
Round window	0.921 (0.329 to 2.576)	0.876
Insertion
Partial	Ref	Ref
Full	4.435 (0.510 to 8.567)	0.177
Brand cochlear implant
Cochlear	Ref	Ref
MedEl	1.421 (0.568 to 3.558)	0.453
Advanced Bionics	2.404 (0.550 to 0.515)	0.244
Difference hearing threshold at 125 Hz	1.005 (0.993 to 1.017)	0.444
Difference hearing threshold at 250 Hz	1.015 (0.999 to 1.031)	0.071
Difference hearing threshold at 500 Hz	1.006 (0.987 to 1.026)	0.533
Difference hearing threshold at 1000 Hz	1.012 (0.986 to 1.038)	0.374

OR >1: in favour of tinnitus recovery.

P values <0.157 (Akaike’s criterion) are presented in bold.

CVC, Consonant-Vowel-Consonant test; Ref, reference.