Mean noise intensities in dB SPL (in and out of ears)
| 0.2 kHz | 0.5 kHz | 1 kHz | 2 kHz | 4 kHz | 6 kHz | 8 kHz | |
|---|---|---|---|---|---|---|---|
| Values are mean (SEM). | |||||||
| CPAP, Continuous positive airways pressure. | |||||||
| No respiratory support (10 ears) | |||||||
| In | 52.85 (1.51) | 45.72 (1.15) | 41.68 (1.3) | 36.35 (1.74) | 34.28 (1.62) | 34.87 (1.44) | 38.51 (1.81) |
| Out | 52.63 (1.51) | 48.15 (1.39) | 39.63 (1.02) | 34.01 (1.46) | 35.85 (1.43) | 34.97 (1.1) | 36.11 (1.96) |
| p Value | 0.92 | 0.20 | 0.23 | 0.32 | 0.48 | 0.96 | 0.38 |
| Conventional ventilation (10 ears) | |||||||
| In | 52.38 (2.66) | 47.01 (3.32) | 39.49 (2.48) | 34.23 (2.13) | 33.25 (1.67) | 33.27 (0.97) | 34.78 (1.42) |
| Out | 52.59 (2.09) | 46.6 (1.89) | 39.18 (1.53) | 33.77 (1.46) | 34.2 (1.03) | 31.61 (0.99) | 35.98 (1.42) |
| p Value | 0.95 | 0.92 | 0.92 | 0.86 | 0.64 | 0.25 | 0.52 |
| CPAP (24 ears) | |||||||
| In | 57.89 (1.37) | 56.71 (1.41) | 55.07 (1.52) | 53.57 (1.17) | 51.78 (1.02) | 52.06 (0.91) | 53.13 (1.43) |
| Out | 59.2 (1.01) | 56.32 (1.35) | 51.92 (1.2) | 51.57 (1.01) | 50.03 (0.71) | 49.73 (1.08) | 50.07 (0.92) |
| p Value | 0.44 | 0.84 | 0.11 | 0.20 | 0.16 | 0.11 | 0.08 |