| GENE | LOCUS or SYNDROME | AMINO ACID CHANGE | NUCLEOTIDE CHANGE | EXON | ETHNICITY (Number of families) | REFERENCES |
| OTOF | DFNB9 | IVS5+1G>A | intron 5 | Middle Eastern (1) | Adato 2000 | |
| IVS8-2A>G | intron 8 | Indian (1) | Yasunaga 2000 | |||
| P490Q | exon 15 | N/A (1) | Mirghomizadeh 2002 | |||
| I515T | exon 15 | N/A (1) | Mirghomizadeh 2002 | |||
| Y730X | 2416T>A | exon 18 | Lebanese (4) | Yasunaga 1999 | ||
| R237X | C>T | exon8/9 | United Arab Emirates (1) | Houseman 2001 | ||
| NSRAN | 1778delG | exon 16 | N/A (1) | Rogers MBHD 2001 | ||
| IVS39+1G>C | intron 39 | N/A (1) | Rogers MBHD 2001 | |||
| R>Q | 6142G>A | exon 48 | N/A (1) | Rogers MBHD 2001 | ||
| P>R | 6285C>G | exon 48 | N/A (1) | Rogers MBHD 2001 |