Table 2.
Prevalence of more than one child with congenital hearing loss with different degrees of consanguinity.
| Degree of consanguinity | Number of children with congenital hearing loss | Total | |
|---|---|---|---|
| 1 | >1 | ||
| First cousin | 93 (71.0) | 38 (29.0) | 131 (69.3) |
| Second cousin | 5 (38.5) | 8 (61.5) | 13 (6.9) |
| Distant cousin | 11 (84.6) | 2 (15.4) | 13 (6.9) |
| Not blood-related | 30 (93.8) | 2 (6.3) | 32 (16.9) |
| Total | 139 (73.5) | 50 (26.5) | 189 |
Data are n (%). The difference between subgroups regarding the prevalence of having more than one child with congenital hearing loss was statistically significant (P=.006).