Analysis of physical growth and body composition in 3-year-old preterm infants

WANG Jing; XIANG Sijia; LU Ying; YANG Lei; HU Xiaosha; QIAN Jun; CHI Xia; ZHANG Min

doi:10.11852/zgetbjzz2022-0585

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Chinese Journal of Child Health Care ›› 2023, Vol. 31 ›› Issue (4) : 457-460. DOI: 10.11852/zgetbjzz2022-0585

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Analysis of physical growth and body composition in 3-year-old preterm infants

WANG Jing^1,2, XIANG Sijia¹, LU Ying¹, YANG Lei¹, HU Xiaosha¹, QIAN Jun¹, CHI Xia^1,2, ZHANG Min¹

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Abstract

Objective To analyze the physical growth and body composition in 3-year-old preterm infants, in order to provide guidance for clinical nutrition support and promoting the growth development of children. Methods Premature infants born from June 2018 to April 2019 and undergoing regular physical examination at the Children's Health Care Department of the Women's Hospital of Nanjing Medical University were randomly selected as the study group, while 3-year-old full-term infants who took physical examination at the same period were selected as the control group. The physical growth index and body composition index of children were measured to compare difference in the growth and body composition of preterm and full-term infants during this period. Results 1) Compared with the controls, the weight and height of premature infants were significantly lower(t=-2.36, -3.26, P＜0.05). 2) The detection rates of emaciation, overweight and obesity were not significantly different between preterm and full-term infants(χ²=5.01, P＞0.05). 3) Compared with the controls, the total body water, protein, inorganic salt and fat-free mass of premature infants were significantly lower(t=-2.70, -2.15, -2.33, -2.79, P＜0.05), but no significant difference was found in the total amount of body fat between the two groups (P>0.05). 4) BMI of premature infants were significantly lower than that of controls (t=-2.05,P=0.03), but fat mass index and body fat percentage had no difference between the two groups (P>0.05). Conclusions At 3 years of age, preterm infants still lag behind full-term infants in terms of physical growth and differ from full-term infants in terms of body composition, with weight gain in preterm infants being more prominent in terms of body fat gain. Therefore, physical measurements need to be combined with body composition monitoring when assessing the growth of preterm infants to better promote healthy growth.

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premature infants / physical growth / body composition

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WANG Jing, XIANG Sijia, LU Ying, YANG Lei, HU Xiaosha, QIAN Jun, CHI Xia, ZHANG Min. Analysis of physical growth and body composition in 3-year-old preterm infants[J]. Chinese Journal of Child Health Care. 2023, 31(4): 457-460 https://doi.org/10.11852/zgetbjzz2022-0585

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