关键词: 智能发育, 早产儿, 足月儿, 过期产儿

Abstract: Objective To compare the developmental quotients(DQs) of the observed infants with different gestational ages(GA,26⁺¹~42⁺⁶weeks) at different ages and to find out the rule of intelligent development of infants with different gestational ages. Methods A total of 3 438 infants who were followed up to 2 years or older from 2012 to 2014 were chosen.The infants were divided into 5 groups according to their GAs and their DQs were recorded at the age of 3,6,9,12,18,24 months respectively.Then the mean values of DQs of different groups were calculated and compared. Results DQs of the very preterm infants were lower than those of other groups during the follow-up period (P<0.05).DQs of late preterm infants could reach the level of term infants and post term infants at 18 months old and later (P>0.05).DQs of term infants and post term infants with different GAs had no significant differences at 6 months old and later (P>0.05). Conclusion The very preterm infants are still the main population of poor intelligent development,active measures should be taken to improve their quality of life

Key words: intelligent development, preterm infant, term infant, post term infant