TABLE 2.
Mean DPOAE level (dB SPL) and SD for cross-sectional database
| F2(Hz) | P1 | P2 | P3 | Term | 4.5 wks | Adult |
|---|---|---|---|---|---|---|
| 1500 | ||||||
| Mean | 15.7 | 14.2 | 15.9 | 15.8 | 15.8 | 9.9 |
| SD | 6.7 | 6.7 | 4.1 | 5.8 | 7.1 | 4.6 |
| 2000 | ||||||
| Mean | 12.3 | 12.1 | 12.3 | 13.6 | 14.2 | 6.0 |
| SD | 6.1 | 5.7 | 5.6 | 5.5 | 5.6 | 6.0 |
| 3000 | ||||||
| Mean | 9.1 | 8.4 | 9.9 | 9.5 | 10.5 | 5.6 |
| SD | 6.2 | 5.9 | 5.9 | 5.9 | 9.1 | 5.8 |
| 4500 | ||||||
| Mean | 7.0 | 6.2 | 9.8 | 9.5 | 13.3 | 5.9 |
| SD | 8.0 | 7.5 | 5.8 | 6.4 | 6.7 | 5.9 |
| 6000 | ||||||
| Mean | 10.4 | 8.8 | 11.3 | 9.6 | 15.0 | 5.1 |
| SD | 4.6 | 7.4 | 5.5 | 5.8 | 6.4 | 5.0 |
| 8000 | ||||||
| Mean | — | — | — | 5.8 | 9.7 | −0.3 |
| SD | — | — | — | 6.8 | 7.5 | 6.5 |
| 9000 | ||||||
| Mean | 6.6 | 6.4 | 7.9 | 5.9 | — | −4.1 |
| SD | 7.1 | 7.4 | 6.8 | 6.6 | — | 7.7 |
P1, 31–33 wks PCA; P2, 34–36 wks PCA; P3, 37–40 wks PCA.