ABSTRACT
This chapter examines the relationships between 11 neonatal variables and IQ within race, sex, and socioeconomic subgroups. Of the 25 neonatal variables screened, 12 were correlated with IQ in at least one racial population. A diagnosis of the involvement of the brain at birth was made by a senior pediatrician after a review of the newborn nursery record. Brain abnormality was diagnosed in 0.45" of the white infants, and 0.46" of the Negro infants. Head circumference was measured during the first day of life and recorded to the nearest centimeter. Head circumference at birth was correlated with duration of pregnancy and reported birthweight of last liveborn child. The chapter examines the positive correlations between birthweight and placental weight, duration of pregnancy, and birthweight of last liveborn child. The mean IQs of children who had primary apnea were significantly lower than those of children without any respiratory complications in the newborn period.
