Table 1.

Cohort demographics and cochlear implantation (CI) characteristics of adults ≥ 60 years old receiving their first cochlear implant at Johns Hopkins, 1999–2011

Characteristic	n (%)
Sex
Male	224 (49.7)
Female	221 (50.3)
Age at initial CI, yr
60–69	184 (41.4)
70–79	175 (39.3)
80–89	82 (18.4)
90–100	4 (0.9)
Mean age, yr (SD)	72.7 (7.69)
[Range]	[60.0–94.9]
Onset of Hearing Loss*
Congenital	5 (1.1)
< 18 yrs	60 (13.5)
>18 yrs	339 (76.2)
First Side Implanted
Right ear	238 (53.5)
Left ear	207 (46.5)
Subsequent Contralateral Implantation†	8 (1.8)
Duration of follow-up
Median, yr	4.8
[Range], yr	[0.1–12.5]

^*41 (9.2%) subjects had missing HL age of onset

^†8 patients subsequently received a contralateral implant