Table 1.
Number of subjects tested for each procedure in each generation
| Generation | n | Audiogram | DPOAEs | ABRs | Reflexes | Gap | Speech | Neurological | Otological | DNA |
|---|---|---|---|---|---|---|---|---|---|---|
| F4 | 9 | 9 | 4 | 2 | 0 | 3 | 0 | 5 | 4 | 9 |
| F5 | 23 | 23 | 16 | 12 | 3 | 13 | 5 | 17 | 6 | 23 |
| F6 | 18 | 18 | 8 | 7 | 4 | 7 | 3 | 8 | 9 | 18 |
| F7 | 22 | 22 | 6 | 1 | 1 | 3 | 1 | 0 | 20 | 22 |
| Total | 72 | 72 | 34 | 22 | 8 | 26 | 9 | 30 | 39 | 72 |
n = number examined; DPOAEs = distortion product otoacoustic emissions; ABRs = auditory brainstem responses; Reflexes = acoustic middle ear muscle responses; Gap = threshold for detecting brief silent period in noise; Speech = word recognition; Neurological = clinical examination; Otological = clinical examination; DNA = blood or cheek swab for genetic analysis.