Maternal and perinatal data were collected from medical records,
and the collected variables were: gestational age, birth weight, size, head
circumference, Apgar in minute 5, maternal infections, maternal drug
consumption, neonatal abstinence syndrome (NAS), and neurological
symptoms at 3 months of age and destination at discharge. The
diagnosis of NAS was made using the standardized scoring system
developed by Finnegan in 1975 [18]. Obtaining 3 scores greater than 8
in the Finnegan Test was considered diagnosis of NAS.