Table 2 Risk factors for progressive or late-onset hearing loss

1.

Positive familiar history for infantile hearing loss

2.

Intrauterine CMV or rubella infections

3.

Syndromes associated with late-onset or progressive hearing loss (Pendred Syndrome, distal renal tubular acidosis (dRTA), Waardenburg syndrome type II, brachio-oto-renal syndrome (BOR), Usher syndrome, Stickler syndrome, CHARGE syndrome, Down syndrome, Turner syndrome, Alport syndrome, exc.

4.

Neurodegenerative disorders, such as Hunter syndrome or sensorimotor neuropathies, such as Friedreich atassia or Charcot-Marie-Tooth syndrome