To determine if cerebral palsy ( CP ) rates were lower in the active treatment group compared with the control group , as improved survival rates of very low-birth-weight infants are postulated to be the cause of the increased incidence of CP in preterm infants , to evaluate relationships between multiple prenatal , perinatal , and postnatal variables and CP to understand better its antecedents in very low-birth-weight infants in the era of surfactant replacement therapy , and to determine the usefulness of a cranial ultrasonographic ( US ) scan in predicting CP .
