Abstract: Objective:To investigate the level of neurobehavioral development of premature infants and the factors related to the differences.Methods:Eighty premature babies born in our hospital from July 2018 to June 2019 were selected as the observation group, and 80 full-term newborns born in our hospital during the same period were selected as the control group. The Bayley-Ⅲ scale was used to evaluate the five energy areas of the newborn: cognitive ability, language understanding, language expression, fine motor, and grand motor. At the same time, the clinical data of the newborn was analyzed by multi-factor logistic;The self-made questionnaire of our hospital was filled in by the parents and the related factors affecting the neurodevelopment level and the differences of preterm infants were analyzed by univariate and multivariate analysis.Results:The scores in cognitive ability, language understanding, language expression, fine motor and grand motor of preterm infants were lower than those of normal term infants(P<0.05); univariate analysis showed that the delivery method(P=0.068), birth weight (P=0.000),body length at birth(P=0.000), mother's education level(P=0.001), head circumference(P=0.000) and gestational age(P=0.000) were related to the level of neurobehavioral development; in the multivariate logistic analysis, newborns' birth weight(P=0.001), body length at birth(P=0.021), mother's education level (P=0.000), head circumference(P=0.014) and gestational age(P=0.005) were related factors affecting the level of neurobehavioral development.Conclusion:The level of neurobehavioral development of normal term infants is higher than that of premature infants. At the same time, the birth weight, body length, mother's education level, head circumference and gestational age of newborns are important factors affecting the level of neurobehavioral development.

Key words: Neurobehavior, Developmental level, Preterm infant, Term infant