Grade of hearing impairment | EU working group (1996) | |
---|---|---|
Mild hearing impairment | 20 dB < BEHL0.5-4 kHz< 40 dB | |
Moderate hearing impairment | 40 dB HASH(0x2f830d0) BEHL0.5-4 kHz< 70 dB | |
Severe hearing impairment | 70 dB HASH(0x2f830d0) BEHL0.5-4 kHz< 95 dB | |
Profound hearing impairment | BEHL0.5-4 kHz HASH(0x2f82cc8) 95 dB |