Table 2

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

PredictorOR (95% CI)P values
Demographics
 Age1.033 (0.997 to 1.071) 0.075
 Gender
  FemaleRefRef
  Male0.750 (0.317 to 1.777)0.513
Deafness-related factors
 Duration of deafness-operated ear1.004 (0.982 to 1.027)0.738
 Preoperative CVC score0.986 (0.971 to 1.003) 0.101
Tinnitus-related factors
 Tinnitus duration0.964 (0.912 to 1.019)0.193
 Tinnitus severity
  MildRefRef
  Moderate0.776 (0.118 to 5.112)0.787
  Severe0.690 (0.086 to 5.573)0.720
 Localisation tinnitus
  UnilateralRefRef
  Bilateral0.358 (0.139 to 0.919) 0.033
Surgery-related factors
 Follow-up duration1.100 (0.944 to 1.283)0.223
 Localisation cochlear implant versus tinnitus 
  Cochlear implant contralateral to tinnitus sideRefRef
  Cochlear implant ipsilateral to tinnitus side0.381 (0.077 to 1.896)0.239
  Unilateral cochlear implant, bilateral tinnitus0.217 (0.059 to 0.790) 0.021
 Surgical approach
  CochleostomyRefRef
  Round window0.921 (0.329 to 2.576)0.876
 Insertion
  PartialRefRef
  Full4.435 (0.510 to 8.567)0.177
 Brand cochlear implant
  CochlearRefRef
  MedEl1.421 (0.568 to 3.558)0.453
  Advanced Bionics2.404 (0.550 to 0.515)0.244
 Difference hearing threshold at 125 Hz1.005 (0.993 to 1.017)0.444
 Difference hearing threshold at 250 Hz1.015 (0.999 to 1.031) 0.071
 Difference hearing threshold at 500 Hz1.006 (0.987 to 1.026)0.533
 Difference hearing threshold at 1000 Hz1.012 (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.