Table 3: Comparison of Hearing threshold levels for bone conduction in the better ear for diabetic subjects and non-diabetic control subjects (N = 140).
| Audiometric Measurements Frequency ( KHz) (Low frequencies) | Diabetic (mean) dB | Control (mean) dB | P value | Diabetic Log dB | Control Log dB | P value |
| 0.25 KHz | 5.3 ± 2.3 | 5.2 ± 1.9 | 0.2 | 0.83 ± 0.02 | 0.78 ± 0.005 | 0.3 |
| 0.5 KHz | 15.6 ± 5.2 | 7.1 ± 2.2 | 0.00 | 1.21 ± 0.03 | 0.9 ± 0.003 | 0.001 |
| 1 KHz (High frequencies) | 22.2 ± 9.7 | 6.4 ± 3.2 | 0.00 | 1.341 ± 0.03 | 0.81 ± 0.003 | 0.00 |
| 2 KHz | 21.5 ± 10.1 | 5.1 ± 1.8 | 0.00 | 1.32 ± 0.03 | 0.75 ± 0.01 | 0.002 |
| 4 KHz | 25.3 ± 9.4 | 6.0 ± 1.7 | 0.00 | 1.351 ± 0.04 | 0.80 ± 0.003 | 0.003 |
| 6 KHz | 24.4 ± 8.7 | 5.7 ± 2.1 | 0.00 | 1.385 ± 0.04 | 0.81 ± 0.03 | 0.001 |
| 8 KHz | 30.7 ± 12.1 | 8.3 ± 2.8 | 0.00 | 1.51 ± 0.04 | 0.9 ± 0.003 | 0.005 |