Results of TEOAE testing (initial hospital study)
| Gestational age of neonate | |||
|---|---|---|---|
| ⩽33 Weeks |
>33 Weeks* plus risk factors | >33 Weeks, no risk factors | |
| (n = 181) | (n = 700) | (n = 1492) | |
| Pass both ears | 129 (71%) | 573 (82%) | 1198 (80%) |
| Fail both ears | 14 (8%) | 50 (7%) | 132 (9%) |
| Pass one ear | 17 (9%) | 77 (11%) | 162 (11%) |
| Partial pass/small OAE | 21 (11%) | ||
| Severe or profound SNL | 1 (0.5%) | 6 (0.9%) | 1 (0.07%) |
| Mild SNL | 0 | 3 (0.4%) | 0 |
| First screen | |||
| Sensitivity | 100% | 100% | 100% |
| Specificity | 93%† | 94% | 91% |
| False positives | 13 (7.2%) | 41 (6%) | 131 (8.8%) |
| Positive predicitive value‡ | 7% | 18% (all SNL) | 0.8% |
| 13% (severe SNL) | |||
| Second screen | |||
| Sensitivity | – | – | 100% |
| Specificity | – | – | 99.3% |
| False positives | – | – | 10 (0.7%) |
| Positive predictive value‡ | – | – | 9% |
OAE, otoacoustic emission; SNL, sensorineural loss.*Representing all eligible babies born in a two year period between 1993 and 1995. †Includes both unilateral fails and partial passes.‡Predictive value of a positive test = proportion of persons with positive tests who will be found to have the disease.