Table 2.
Group characteristics of children with additional disabilities (AD) and without additional disabilities (No-AD).
| Characteristic | AD group
|
No-AD group
|
|||
|---|---|---|---|---|---|
| M (SD) | Range | M (SD) | Range | p value | |
| Age at pre-CI testing (months) | 20 (9) | 6–40 | 20 (8) | 8–36 | 0.94 |
| Age at implantation (months) | 24 (10) | 9–48 | 22 (8) | 10–39 | 0.47 |
| Age at post-CI testing (months) | 29 (8) | 16–45 | 31 (10) | 16–54 | 0.53 |
| Unaided PTA at pre-CI (dB HL) | 112 (11) | 82–120 | 104 (13) | 73–118 | 0.05 |
| Cognitive ability (SS)a | 74 (19) | 50–118 | 94 (13) | 73–125 | 0.001 |
|
| |||||
| Percent | Percent | ||||
|
| |||||
| Device (unilateral) | 87 | 65 | — | ||
| Communication mode (Oral) | 39 | 70 | — | ||
| Gender (male) | 65 | 65 | — | ||
| Insertion (full) | 65 | 96 | — | ||
Note: M=mean. SD=standard deviation. PTA = pure-tone average in better ear. dB HL = decibels hearing loss. SS = standard score.
a
Either 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.