Table 3.
Auditory brainstem responses (ABR) at 70 dB NHL for the repeated antenatal corticosteroid (AC) and single AC groups presented as mean (standard deviation) latency and amplitude of each wave.
| Variable | Repeated (n=24) | Single (n=27) | P value | Cohen’s D |
|---|---|---|---|---|
| Right ear ABR latency (msec) | ||||
| Wave I | 2.31 (0.54) | 2.21 (0.39) | 0.272 | 0.22 |
| Wave III | 5.34 (0.48) | 5.23 (0.52) | 0.209 | 0.23 |
| Wave V | 7.93 (0.60) | 7.63 (0.65) | 0.079 | 0.48 |
| Wave I–V | 5.62 (0.55) | 5.42 (0.54) | 0.305 | 0.37 |
| Right ear ABR amplitude (μV) | ||||
| Wave I | 0.25 (0.08) | 0.21 (0.08) | 0.076 | 0.48 |
| Wave V | 0.18 (0.06) | 0.19 (0.07) | 0.599 | 0.08 |
| Left ear ABR latency (msec) | ||||
| Wave I | 2.13 (0.36) | 2.08 (0.36) | 0.334 | 0.16 |
| Wave III | 5.18 (0.37) | 5.13 (0.38) | 0.779 | 0.13 |
| Wave V | 7.74 (0.60) | 7.62 (0.52) | 0.406 | 0.22 |
| Wave I–V | 5.60 (0.50) | 5.54 (0.60) | 0.953 | 0.11 |
| Left ear ABR amplitude (μV) | ||||
| Wave I | 0.26 (0.11) | 0.23 (0.08) | 0.169 | 0.41 |
| Wave V | 0.21 (0.08) | 0.20 (0.08) | 0.760 | 0.12 |
ABR, auditory brainstem response; dB NHL, decibels normal hearing level