Neonatal hearing screening may fail due to some perinatal and neonatal factors. It is well known that false positivity increases cost and maternal anxiety and anxiety in the neonatal hearing screening. The effect of the type of delivery to hearing screening is not yet clear. The first automated mode of delivery of babies born in Turkey auditory brainstem response (SAD's), the authors aimed to evaluate the effects of the test results and false positive rate.

newborns were evaluated with brainstem response test. The AABR test was performed before patients were discharged. Perinatal and neonatal variables and AABR test results were recorded retrospectively.

Inclusion Criteria:

• records of birth process and
• pregnancy test results of newborns.

Exclusion Criteria:

• newborn;
• She was in a neonatal intensive care,
• congenital / chromosomal anomaly,
• undergoing congenital cmv infection,
• facial / ear deformity,
• families with hearing problems,
• those with hyperbiliromyemia,
• <12 hours after delivery,
• maternal infection,
• dm,
• recurrent abortion,
• smoking,
• plesanta previa,

The patients who gave birth in our hospital and who had a hearing test in their newborns will form the study group.