Maternal and neonatal clinical characteristics
Maternal and neonatal clinical data were retrieved from SJD Barcelona Children’s Hospital and their Health Reference Center. In the event of being unable to find particular data in the mother-child clinical record, information was obtained from the sociodemographic questionnaire filled by the parents (Table 1). From the initial 27 LGA recorded, 25 LGA were compared with 25 AGA paired by sex and GA at birth. Two LGA with unreliable FFR (their SNR was <0) were excluded from the analyses. Significantly higher pre-pregnancy weight (P = .03) and pre-pregnancy body mass index (BMI) (P = .04), but not height (P = .47), were found in LGA mothers compared to AGA mothers, as well as higher incidence of maternal obesity (pre-pregnancy BMI ≥30 kg/m2) amongst LGA mothers than in AGA mothers (P = .04). No group differences were found in any other of the maternal characteristics assessed.
Regarding the neonatal clinical characteristics (Table 2), LGA neonates presented, as expected, a significantly higher birth weight and centile (P = <.001), length (P = .001), BMI and head circumference (P = <.001) compared to AGA neonates. No differences were observed in GA at birth, Time from birth to EEG recording, GA at EEG recording, gender, labor induction, emergency cesarean section, neonatal acidosis, and Apgar score lower than 7 assessed at 5 minutes of life.