关键词: 小于胎龄儿, 能量, 蛋白质

Abstract: Objective To investigate the energy and protein intake of small for gestational age(SGA) infants under 6 months of age, in order to provide basis for early feeding guidance of SGA. Methods Participants were prospectively enrolled from Department of Child Health Care of the Children's Hospital of Chongqing Medical University from September 2013 to May 2015. Totally 146 infants including 63 SGA and 83 appropriate-for-gestational-age(AGA) infants were selected according to the inclusion and exclusion criteria. And their weight,length,head circumference and dietary conditions were evaluated at age of 3 and 6 months(the premature were valuated at adjusted age of 3 and 6 months).Results The energy intake of SGA group in 3-month-old infants [(87.70±15.82)kCal/(kg·d)] was significantly higher than that in 6-month-old infants [(80.40±14.48)kCal/(kg·d)](F=11.260,P=0.001),both of which were lower than the adequate intake of 90 kCal/(kg·d). Compared with AGA group,the energy intake of SGA group was not significantly different in 3 months(LSD-t=0.333, P=0.740),and significantly higher in 6 months(LSD-t=3.672, P＜0.001). The protein intake of SGA group at the age of 3 months old was significantly lower than that of 6-month-old SGA[(10.65±2.94) g/d vs.(12.81±3.15) g/d,F=36.770,P＜0.001)],both of which were higher than the adequate intake of 9 g/d. Compared with AGA group,the protein intake of SGA group was significantly lower in 3-month-old infants(LSD-t=-2.023,P=0.045),and not significantly different in 6-month-old infants(LSD-t=-0.072,P=0.943). Conclusion SGA infants need high intake of protein but no more than adequate intake of energy to keep normal physical growth.

Key words: small for gestational age, energy, protein