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Characteristics of participants in each group.
| Hearing-impaired | Hearing | |
|---|---|---|
| Number of children | 39 | 39 |
| Mean age (SD) (months) | 60 (12) | 60 (8) |
| Range of age (months) | 44–90 | 44–72 |
| Mean age of using hearing aids (SD) (months) | 29 (12) | // |
| Range of unaided-hearing loss (left/right) | 60–125/60–125 | // |
| Ratio of males: females | 24:15 | 23:16 |
