Table 1.

Hearing Outcomes in Congenital CMV^a

Hearing Loss Characteristics	Asymptomatic	Symptomatic
Sensorineural hearing loss	7%–10%	32%–41%
Characteristics of Loss
Unilateral	52%–57%	29%–33%
Bilateral	43%–48%	67%–71%
Progressive loss	20%–54%	18%–54%
Fluctuating loss	24%–54%	22%–29%
High-frequency loss only	38%	27%
Bilateral severe to profound loss	43%	75%
Delayed-onset loss	9%–38%	18%–27%
Median age (range) of delayed-onset loss	44 months (24–182)	33 months (6–197)

^aData adapted from references [19, 21, 24].