title: [Characteristics of transient evoked otoacoustic emissions in newborn hearing screening program].
abstract: BACKGROUND
  Otoacoustic emissions (OAE) are considered the main instrument of the Newborn Hearing Screening Program (NHSP).
  
  
  OBJECTIVE
  To analyze the OAE of newborns evaluated in the NHSP.
  
  
  METHODS
  Transient evoked OAE recordings were captured in 1000 infants. The data were analyzed using the analysis of multivaried variance (Manova).
  
  
  RESULTS
  Reference tables were calculated for the over all OAE levels and for frequency bands, according to gender and ear. The duration of the exam in the nursery was shorter than in the clinic.
  
  
  CONCLUSIONS
  The level of the OAE was influenced by gender and ear, except for 0,7kHz. However, there were no observed differences between neonates without and with auditory risk.
authors.affiliation: Fonoaudióloga, Doutora em Ciências pela Faculdade de Medicina da Universidade de São Paulo. asdurant@usp.br
authors.forename: Alessandra Spada
authors.initials: AS
authors.lastname: Durante
authors.forename: Renata Mota Mamede
authors.initials: RM
authors.lastname: Carvallo
authors.forename: Fabiana Sanches
authors.initials: FS
authors.lastname: da Costa
authors.forename: Jordana Costa
authors.initials: JC
authors.lastname: Soares
mesh_terms: D001938:Brazil; D005260:Female; D034381:Hearing Loss / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D015999:Multivariate Analysis; D015997:Neonatal Screening; D017084:Otoacoustic Emissions, Spontaneous / Q000502:physiology*; D015397:Program Evaluation; D012307:Risk Factors; D012680:Sensitivity and Specificity; D017678:Sex Distribution; D012737:Sex Factors