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Table 1 Participants’ demographics and clinical data

From: Response shift in hearing related quality of life after cochlear implantation – effect size and clinical significance: a then-test study

Demographic category

Numerical data

Gender (male / female)

9 / 8

Age at surgical procedure

63.4 ± 15.8 years (range 18.9 – 87.1 years)

Age at onset of deafness

56.2 ± 21.9 years (range 11.9 – 86.7 years)

Duration of deafness before CI surgical procedure

7.2 ± 10.3 years (range 0.0 – 36.0 years)

Categorized duration of deafness pre CI surgical procedure

 > 1 year

8

 <  = 1 year

5

 = 0

4

Etiology

 Acoustic trauma

1

 Earlier middle ear surgery

3

 Ménière's disease

1

 Mumps

1

 Otitis media

1

 Otosclerosis

1

 Sudden hearing loss

5

 Unidentified hereditary

1

 Unknown

3

Implanted side (right / left)

13 / 4

CI manufacturers (Advanced Bionics / Cochlear / MED-EL)

3 / 9 / 5

Hearing status of the contralateral ear

 Normal

7

 Mild hearing loss

1

 Moderate hearing loss

6

 Profound hearing loss

2

 Residual hearing

1

Duration of CI use within the scope of the study

1.8 ± 0.6 years (range 0.8 – 2.9 years)