The Difference Analysis Of Nutrition Intake And Growth Status In Small/appropriate For Gestational Age Preterm Infants

Objective;The morbidity and mortality of small for gestation age(SGA)infants were higher than the appropriate for gestation age(AGA)infants in perinatal.And,SGA was associated with physical and mental retardation.Early reasonable nutrition support was crucial for improving the survival rate and prognosis of SGA.In this paper,nutrition in-take and extra-uterine growth status of SGA and AGA with gestational age 28?31+6 weeks were analyzed retrospectively,in order to know whether there were differences in nutrition demand between SGA and AGA infants during hospitalization.Methods:A retrospective study was performed in Department of Neonatology in Wom-en's Hospital,Zhejiang University School of Medicine.All singleton SGA infants born at 28?31+6 gestational age and discharged from 2015 to 2017 were included in the study(n=25).The control group consisted of the singleton AGA infants,matched 2:1 with SGA for gestational age and gender(n=50).The daily energy intake,daily protein intake,weight growth velocity,and change of Z-score were compared,the quantitative relation-ship between nutrition intake and weight growth velocity was analyzed.Results:The daily energy and protein intake of the SGA group were higher than those of the AGA group from the 3rd to 4th week after birth and the whole hospitalization,P value was 0.015,<0.001,0.002 for daily energy intake,and<0.001,0.046,<0.001 for daily protein intake,respectively.The weight growth velocity of SGA group from weight nadir to the 28th day and discharge were both higher than AGA group,P value was both<0.001,respectively.The change of weight Z score from discharge to the weight nadir and birth showed no difference,P value were 0.904 and 0.929,respectively.There was no statistically significant difference in protein requirements for every 1g weight gain during hospitalization between the two groups,P value was 0.307;The energy intake of the AGA group was higher than that in the SGA group for every 1g weight gain,P value was 0.014.Conclusion:We should provide higher energy and protein intake for the SGA born at 28?31+6 gestational age than the same gestational AGA infants to meet their growth need.