Table 6.
Scores on the Oral and Written Language Scales (OWLS) in 104 children with unilateral hearing loss (cases) compared to 91 siblings with normal hearing (controls). Standard scores range from 40 to 160 by age and grade, with mean = 100 and SD = 15.
| UHL | Controls | P values | ||||
|---|---|---|---|---|---|---|
| All | Right | Left | UHL vs. NH | Right vs. Left | ||
| Standardized Scores | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | ||
| Listening comprehension | 91.7 (10.9) | 91.4 (11.8) | 92.1 (9.7) | 96.7 (14.2) | 0.007 | 0.812 |
| Oral expression | 92.7 (15.8) | 92.4 (15.0) | 93.0 (16.9) | 100.1 (18.5) | 0.003 | 0.841 |
| Oral composite | 90.6 (13.0) | 90.0 (13.2) | 91.5 (12.8) | 98.0 (15.7) | 0.0004 | 0.562 |
| Scores >1 SD below mean | n (%) | n (%) | n (%) | n (%) | ||
| Listening comprehension | 29 (28) | 18 (30) | 11 (24) | 20 (22) | 0.409 | 0.518 |
| Oral expression | 32 (31) | 19 (32) | 13 (29) | 14 (15) | 0.017 | 0.831 |
| Oral composite | 36 (35) | 22 (37) | 14 (31) | 15 (16) | 0.005 | 0.540 |