Table 1.

Dataset Demographics.

	VUMC	ESIA	MHH	Combined datasets
Number of patients	491	293	1,951	2,735
Age at implantation (years)	64.0 (15.3)	62.8 (15.0)	55.5 (17.4)	57.8 (17.2)
$\mathrm{WRS}(\mathrm{CI})$	43.8 (23.1)	42.1 (23.1)	51.2 (28.9)	48.9 (27.6)
$\mathrm{WRS}(\mathrm{HA})$	8.3 (12.1)	7.6 (11.5)	4.2 (9.6)	6.0 (10.9)
${\mathrm{YRS}-\mathrm{D}}_i$	26.5 (17.9)	29.8 (18.7)	8.9 (13.2)	14.9 (17.414)
PTA${}_i$	98.7 (19.2)	116.8 (14.0)	98.8 (17.2)	100.7 (18.2)
PTA${}_c$	85.2 (25.8)	87.5 (28.1)	77.8 (28.4)	80.2 (28.2)
N. female (%)	220 (44.8%)	—	1,072 (54.9%)	1,292 (52.9%)
N. prelingual HL (%)	38 (7.7%)	47 (16.0%)	161 (8.3%)	246 (9.0%)

All entries show mean (and standard deviation in brackets), except N. female and N. prelingual HL, where we report the number and percentage of participants.

^a VUMC = Vanderbilt University Medical Center; ESIA = Ear Science Institute Australia; MHH = Medizinische Hochschule Hannover; $\mathrm{WRS}(\mathrm{CI})$ = 12-month post-operative word recognition score percentage correct; WRS(HA) = preoperative word recognition score percentage correct with hearing aid; ${\mathrm{YRS}-\mathrm{D}}_i$ = years of severe to profound hearing loss in the implanted ear; PTA${}_{i/c}$ = pure tone average in implanted/contralateral ears.