Table 3.

Combined Classification Types in Subjects with Audiometric Data

Combined Classification	n (Adult, Pediatric)	Mean number of active electrodes (n)	Mean number of side effects (n)	Mean T’s during ABI programming (n)
Type IA	(1, 1)	12 (2)	2.5 (2)	98.4 CL (2)
Type IB	(0, 1)	14 (1)	3 (1)	135.29 CL (1)
Type IIA	(0, 3)	14 (3)	0 (3)	99.62 CL (2)
Type IIB*	(1, 1)	11.5 (2)	6 (1)	142.36 CL (1)
Type IIIA	(1, 0)	8 (1)	5 (1)	92 CL (1)
Type IV	(1, 0)	12 (1)	7 (1)	125.5 CL (1)
Type D	(2, 0)	12 (2)	10.5 (2)	165.79 CL (2)

T = Perceptual threshold value for electrode on ABI programming maps

^*2 additional adult subjects with IIB did not have audiometric data