Table 1.

Individual characteristics of children with additional disabilities (AD) and comparison group with no additional disabilities (No-AD).

ID	Participants with additional disabilities		Comparison group
	Age at implant (months)	Additional disability	Cognitive functiona	Age at implant (months)	Cognitive functiona
1	36.57	ASD	—	34.2	—
2	8.94	Mitochondrial myopathy (motor)	—	10.25	95
3	17.18	Goldenhar syndrome	—	14.49	110
4	17.28	ASD, prematurity, dev delay	—	13.54	100
5	10.74	CP, vision	118	13.83	97
6	47.77	Dev delay	82	27.34	—
7	20.07	Prematurity, seizure disorder	—	22.11	—
8	24.94	CP, dev delay, prematurity	54	22.64	94
9	16.49	BOR syndrome (prematurity, motor, dev delay, vision)	83	17.28	111
10	29.21	Blindness, hypoparathyroidism (motor), dev delay	50	27.93	85
11	16.72	CP, dev delay, vision, prematurity	73	17.28	104
12	18.37	VATER syndrome (motor)	94	15.97	75
13	34.6	CHARGE (dev delay, vision, oral-motor, motor)	66	39.16	73
14	33.77	Leigh’s disease (motor, vision, oral-motor)	55	31.74	95
15	13.31	Prematurity	100	13.6	85
16	32.23	Dev delay, motor delay	55	28.55	100
17	33.45	CP, prematurity, dev delay	55	32.53	—
18	21.88	Motor delay, dev delay	70	23.59	125
19	31.51	Robinow syndrome (motor, oral-motor)	65	24.15	90
20	31.28	CP	85	22.74	75
21	14.59	CHARGE (oral-motor)	85	12.75	90
22	24.94	CP, prematurity, dev delay	60	21.52	—
23	24.57	Dev delay	85	28.91	88

Note: ASD = autism spectrum disorder. CHARGE = coloboma, heart anomalies, choanal atresia, renal anomalies, genital anomalies, ear anomalies. Dev = developmental. CP = cerebral palsy. ADD = attention deficit disorder. BOR = branciootorenal syndrome. VATER = vertebrae, anus, trachea, esophagus, renal.

^aEither the cognitive composite score from the Bayley Scales of Infant and Toddler Development, or the cognitive domain standard score from the Developmental Assessment of Young Children (DAYC) was used to assess cognitive functioning.