Fig. 1.

Overview of infants with congenital CMV infection according to hearing outcome. OAE otoacoustic emissions, cCMV congenital CMV infection, F-UP follow-up, ABR auditory brainstem response, SNHL sensorineural hearing loss ^a In all 22 children, ABR confirmed hearing loss in the same ear in which OAE testing failed, suggesting that hearing loss was present at birth; eight infants with unilateral SNHL (profound, n = 5; moderate, n = 2; and mild, n = 1) and 14 infants with bilateral SNHL (profound, n = 8; severe, n = 1; moderate, n = 4; mild, n = 1; all refer to the better ear). Hearing thresholds assessed with the ABR were defined as follows: a threshold of 0–25 dB for normal hearing, 26–40 dB for mild hearing loss, 41–60 dB for moderate hearing loss, 61–80 dB for severe hearing loss and >80 for profound hearing loss