Table 3. Correlation coefficients of hearing aid benefits on localization and speech perception.
Variable | Age (years) |
Pure-tone threshold in better ear (dB HL) |
Unaided SRD (rpo) |
Unaided TMD (dB) |
||
---|---|---|---|---|---|---|
Localization (negative value of device benefit indicates positive benefit from wearing a device) | ||||||
RMSE | CROS benefit | R | −0.391 | −0.518* | 0.441* | −0.516* |
P | 0.080 | 0.016 | 0.045 | 0.017 | ||
BAHA benefit | R | 0.368 | 0.579** | −0.515* | 0.482* | |
P | 0.101 | 0.006 | 0.017 | 0.027 | ||
Consonant test (positive value of device benefit indicates positive benefit from wearing a device) | ||||||
In a quiet environment | CROS benefit | R | 0.393 | 0.544* | −0.516* | 0.589** |
P | 0.078 | 0.011 | 0.017 | 0.005 | ||
BAHA benefit | R | 0.051 | −0.155 | −0.008 | 0.126 | |
P | 0.827 | 0.502 | 0.971 | 0.585 | ||
In a steady noise environment | CROS benefit | R | 0.126 | −0.153 | −0.107 | 0.490* |
P | 0.586 | 0.509 | 0.645 | 0.024 | ||
BAHA benefit | R | 0.032 | −0.198 | −0.015 | 0.077 | |
P | 0.891 | 0.390 | 0.947 | 0.739 | ||
In a modulated noise environment | CROS benefit | R | 0.182 | 0.121 | −0.379 | 0.312 |
P | 0.430 | 0.601 | 0.091 | 0.168 | ||
BAHA benefit | R | 0.133 | 0.030 | −0.384 | 0.278 | |
P | 0.565 | 0.898 | 0.086 | 0.222 | ||
K-HINT (negative value of device benefit indicates positive benefit from wearing a device) | ||||||
Summation | CROS benefit | R | −0.184 | −0.314 | −0.066 | 0.014 |
P | 0.424 | 0.166 | 0.777 | 0.951 | ||
BAHA benefit | R | 0.029 | −0.149 | −0.116 | 0.076 | |
P | 0.902 | 0.520 | 0.618 | 0.744 | ||
Squelch | CROS benefit | R | −0.425 | −0.300 | 0.558** | −0.352 |
P | 0.055 | 0.187 | 0.009 | 0.118 | ||
BAHA benefit | R | 0.088 | 0.130 | 0.170 | −0.095 | |
P | 0.705 | 0.573 | 0.461 | 0.683 | ||
Head shadow | CROS benefit | R | 0.569** | 0.200 | −0.489* | 0.429 |
P | 0.007 | 0.384 | 0.025 | 0.052 | ||
BAHA benefit | R | −0.060 | −0.268 | −0.028 | 0.129 | |
P | 0.797 | 0.241 | 0.904 | 0.577 |
Asterisks indicate a statistically significant difference (* = p < 0.05, ** = p < 0.01).