| methodology of a multistate study of congenital hearing loss: preliminary data from utah newborn screening. | a multistate centers for disease control and prevention (cdc) study was designed to investigate the etiology of congenital hearing loss in infants ascertained through state-mandated hearing screening or early hearing loss detection and intervention (ehdi) programs. at least 50% of permanent childhood-onset hearing loss is due to genetic causes, and approximately 20% of all infants with congenital hearing loss have mutations in the gjb2 gene. another 1% of childhood hearing loss is due to mitocho ... | 2004 | 14755431 |