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Mean ABG closure distribution in frequencies of 500–3,000 Hz
| ABG closure (dB) | Causse Loop Piston | Big Easy Piston | p | ||
|---|---|---|---|---|---|
| ≤ 10 | 57.5% | 92.5% | 59.1% | 94.2% | 0.571a |
| 11–20 | 35.0% | 35.1% | |||
| 21–30 | 3.5% | 7.5% | 3.3% | 5.8% | |
| > 30 | 4.0% | 2.5% | |||
Comparison of ABG closure within 20 dB between groups.
ABG: air-bone gap
