Table 1.
The findings of eight cohort studies describing the characteristics of hearing loss due to cCMV infection. cCMV, congenital cytomegalovirus; NA, not available; SNHL, sensorineural hearing loss.
| Percentage of Cases with Bilateral SNHL | Percentage of Cases with Unilateral SNHL | Percentage of Cases with Bilateral Severe-to-Profound SNHL | Percentage of Cases with Delayed-Onset Hearing Loss | Percentage of Cases with Progressive SNHL | |
|---|---|---|---|---|---|
| Saigal et al., 1982 [23] | 57% | 43% | 43% | 0% | 0% |
| Preece et al., 1984 [24] | 60% | 40% | 60% | 0% | 20% |
| Ahlfors et al., 1999 [25] | 80% | 20% | 80% | 0% | 0% |
| Dahle et al., 2000 [26] | 60% | 40% | NA | 31% | 54% |
| Yamamoto et al., 2011 [27] | 50% | 50% | 40% | NA | 0% |
| Foulon et al., 2012 [28] | 44% | 56% | NA | 13% | 38% |
| Royackers et al., 2013 [29] | 67% | 33% | 59% | 11% | 41% |
| Capretti et al., 2014 [30] | 63% | 38% | 50% | 63% | 0% |
| Mean | 60% | 40% | 55% | 25% | 43% |