a population of very low birthweight infants consisting of 41 infants ( 24 female ) less than 1000 g birthweight and 108 infants ( 63 female ) 1000-1499 g birthweight received auditory brainstem response audiometry ( abr ) before initial discharge from hospital and were subsequently monitored via behavioural audiometry and tympanometry as part of their pediatric medical team follow-up assessment at age 7 months .
C0282666
very low birthweight infants
C0005612
birthweight