Table 5.
Achievement test scores in 107 children with unilateral hearing loss (cases) compared to 94 siblings with normal hearing (controls). Children with right-sided unilateral hearing loss (right UHL, n=59) are also compared with children with left-sided unilateral hearing loss (left UHL, n=48). Standard scores range from 40 to 160 by age and grade, with mean = 100 and SD = 15.
| UHL | NH | P values | ||||
|---|---|---|---|---|---|---|
| All | Right | Left | UHL vs. NH | Right vs. Left | ||
| Standardized Scores | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | ||
| Reading | 101.1 (15.3) | 103.1 (16.2) | 98.7 (13.7) | 102.7 (15.4) | 0.470 | 0.135 |
| Math | 96.6 (15.9) | 95.8 (15.9) | 97.6 (16.2) | 99.2 (16.6) | 0.251 | 0.558 |
| Writing | 101.5 (14.8) | 102.4 (15.6) | 100.4 (13.8) | 103.5 (16.2) | 0.368 | 0.482 |
| Scores >1 SD below mean | n (%) | n (%) | n (%) | n (%) | ||
| Reading | 13 (12) | 7 (12) | 6 (12) | 12 (13) | 0.845 | 0.920 |
| Math | 22 (21) | 14 (24) | 8 (17) | 18 (19) | 0.860 | 0.472 |
| Writing | 14 (13) | 8 (14) | 6 (12) | 11 (12) | 0.832 | 0.872 |
| Any WIAT results ≥ 1 SD below mean | 27 (25) | 16 (27) | 11 (23) | 25 (26) | 0.961 | 0.660 |