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Comparison of the mean hearing levels.
| Variables | L(left), R(right) | CF(Cystic Fibrosis) (Mean ± SD) | C(Control) (Mean ± SD) | P value |
|---|---|---|---|---|
| Audiometric mean of all frequencies | L (dB) | 17.96 ± 5.27 | 5.86 ± 2.58 | 0.00004 |
| R(dB) | 21.39 ± 4.20 | 5.43 ± 2.78 | 0.01018 | |
| Audiometric mean of 500, 1000, 2000, 4000 Hz frequencies | L(dB) | 16.25 ± 4.91 | 5.32 ± 2.71 | 0.00048 |
| R(dB) | 20.52 ± 4.52 | 5.15 ± 2.80 | 0.00366 |
