›› 2015, Vol. 33 ›› Issue (1): 32-.doi: 10.3969 j.issn.1000-3606.2015.01.009

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The nutritional status of the hospitalized premature infants with very low birth weight in China:a retrospective multicenter study

The National Cooperation Group on Nutrition, The Chinese Neonatologist Association, China   

  • Received:2015-01-15 Online:2015-01-15 Published:2015-01-15

Abstract: Objective The aim of this study was to investigate the nutritional status of the hospitalized premature infants with birth weight lower than 1 500 g in the different areas in China, and to analyze the related influence factors of extrauterine growth restriction (EUGR). Methods The retrospective survey method was used to collect clinical data of the premature infants with birth weight lower than 1 500 g and hospital stay of more than 2 weeks in 15 hospitals between January 1, 2012 and December 31, 2012. A descriptive analysis was performed for intestinal and parenteral nutrition and weight gain, and the related influence factors of EUGR were analyzed. Results A total of 572 premature infants were selected. The mean gestational age was 30.6±2.0 weeks, and the mean birth weight was 1255.7±164.8 g. The mean enteral feeding starting time after birth was 68.2±85.4 hours, and the mean age to reach oral calorie of 100 kcal/(kg·d) was 29.9±14.1 days. During hospitalization, the mean weight growth velocity after return to birth weight was 11.8±5.5 g/(kg·d). The duration of hospitalization was 42.2±20.8 days and the corrected gestational age was 36.6±2.7 weeks at the time of discharge. At birth, the percentage of birth weight below P10 was 52.6%, and below P3 was 29.0%. At the time of discharge, the percentage of weight below P10 was 80.9%, and below P3 was 63.6%. There were differences between two time points (P<0.01). The indices of nutrition, weight gain and other indices at discharge were significantly different among 15 hospitals (P<0.05). Small gestational age, low birth weight, birth weight below P10, taking a long time to reach oral calorie limit and slow weight gain were independent risk factors of EUGR in premature infants with very low birth weight (VLBW) at the time of discharge (P<0.05). Conclusions Now in our country, the nutritional status of hospitalized premature infants with VLBW was not optimistic, and there was significant difference in different areas. To improve the nutritional status of hospitalized preterm infants, active implementation of standardized nutritional support strategies were important.