Table 1.
CI participants’ demographics and skill level by test interval.
| 48 Month | 60 Month | 72 Month | ||
|---|---|---|---|---|
| n | 150 | 155 | 142 | |
| Age at test | Mean | 6.5 | 7.4 | 8.5 |
| SD | 1.2 | 1.2 | 1.2 | |
| Female | % | 55 | 54 | 58 |
| Additional Disabilities | % | 15 | 17 | 17 |
| Normal inner ear imaging | % | 79 | 74 | 73 |
| Implant < 30M | % | 57 | 59 | 59 |
| At least some college education (mother) | % | 81 | 82 | 82 |
| Nonwhite | % | 33 | 34 | 32 |
| HINT-C Condition Sample Size | ||||
| Quiet | n | 103 | 107 | 75 |
| @+ 10 dB S/N | n | 83 | 94 | 77 |
| @+ 5 dB S/N | n | 61 | 69 | 69 |
| @0 dB S/N | n | 35 | 45 | 35 |
| HINT-C Skill Level at Each Evaluation | ||||
| Not ready | % | 45 | 25 | 14 |
| <50% @+10/+5 dB S/N | % | 10 | 12 | 6 |
| < 50% @+10/+5 dB S/N | % | 9 | 14 | 13 |
| >50% @+10, <50% @+5 dB S/N | % | 11 | 11 | 15 |
| >50% +10/+5 dB S/N | % | 25 | 39 | 52 |