Table 2.
Participant characteristics by hearing status.
| Variable | Preschoolers with CI (n = 24) |
Preschoolers with NH (n = 21) |
||
|---|---|---|---|---|
| M (SD) | Range | M (SD) | Range | |
| Age at implantation (months) | 20.01 (7.87) | 10.41–36.60 | ||
| Age at hearing aid fit (months) | 8.65 (8.19) | 1–30 | ||
| Duration of implant use (years) | 2.73 (1.14) | 0.53–5.18 | ||
| Preimplant residual hearing (PTA)a | 99.79 (13.33) | 73.33–118.43 | ||
| Communication modeb | 4.75 (0.85) | 2–5 | ||
| Chronological age (years) | 4.36 (1.14) | 3.13–6.94 | 4.19 (1.05) | 3.21–7.0 |
| Income levelc | 6.81 (3.20) | 1–10 | 7.57 (1.57) | 5–10 |
| Nonverbal IQd | 53.45 (10.63) | 33–81 | 58.52 (12.54) | 41–78 |
| Languagee | 77.96 (24.33) | 50–128 | 117.62 (11.86) | 91–138 |
Note. NH = normal hearing.
a
Unaided pure-tone average (PTA) in the better ear for the frequencies 500, 1000, and 2000 Hz in dB HL.
b
Communication mode is coded on a scale from mostly sign (coded 1) to auditory-verbal (coded 6) with a code of 4 = cued speech.
c
lncome level is coded on a scale from under $5,000 (coded 1) to $95,000 and over (coded 10) with a code of 6 = $35,000-$49,999 and a code of 7 = $50,000-$64,999.
d
T score from the Differential Ability Scales, II Picture Similarities subtest.
e
Standard score from Preschool Language Scale, Fourth Edition Total Language Score.