A summary of GJB2 studies assessing the prevalence of the M34T allele
| Population ethnicity | Cohort with NSSNHL chromosomes screened | M34T frequency (%) | Control chromosomes screened | M34T frequency (%) | Refs | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sib pair | Sporadic | ||||||||||
| Spanish/Italian | 620 | 874 | 0.067 | — | — | 3, 4, 19 | |||||
| Japanese | 98 | 50 | 0.000 | 518 | 0.000 | 7, 20, 21 | |||||
| French | 94 | 114 | 0.000 | — | — | 22 | |||||
| American | 130 | — | 1.538 | 392 | 0.765 | 11, 23 | |||||
| Israeli | 150 | — | 0.000 | — | — | 15 | |||||
| Mixed | 148 | — | 3.378 | — | — | 12 | |||||
| British/Irish | 214 | 132 | 3.179 | 1260 | 1.984 | This study | |||||