Comparison of two neonatal growth reference.

ZHANG Ya-qin; GAO Cai-yun; ZENG Ting; YAN Ai-xia; LI Hui.

doi:10.11852/zgetbjzz2014-22-08-05

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Chinese Journal of Child Health Care ›› 2014, Vol. 22 ›› Issue (8) : 799-802. DOI: 10.11852/zgetbjzz2014-22-08-05

Comparison of two neonatal growth reference.

ZHANG Ya-qin¹, GAO Cai-yun², ZENG Ting³, YAN Ai-xia³, LI Hui¹.

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Abstract

Objective To compare the difference in practices between Chinese neonatal growth reference in 1988 (Abbreviation for "China 1988") and the Fenton neonatal growth reference in 2003(Abbreviation for "Fenton 2003"). Methods Subjects were live newborns in two Maternal and Child Health Hospitals in the northern and southern areas of China during 2011 to 2012.The birth weight of newborns was assessed by using the growth reference of China 1998 and Fenton 2003 and compared the difference of two assessment results. Results 1) The birth weight of newborns were lower before 36 weeks of gestational age and higher after 37 weeks of gestational age (100~157 g) when comparing with the China 1988.The differences of birth weight were not obvious before 32 weeks of gestational age and the birth weight was lower after 32 weeks when comparing with the Fenton 2003.The shapes of P₁₀ and P₅₀ percentile curves in this paper were similar with the two reference charts, while the shapes of P₉₀ percentile curve was different with the China 1988 but similar with the Fenton 2003;2) The BWZ of the China 1988 and Fenton 2003 were respectively 0.18(95%CI:0.17~0.20) and -0.16(95%CI:-0.18~-0.15);3)The relevance ratio of small-for-gestational-age (SGA) using the China 1988 and Fenton 2003 were respectively 16.7% and 12.4% for newborns younger than 37 weeks, 5.9% and 7.2% for newborns older than 37 weeks.The relevance ratio of large-for-gestational-age (LGA) using the China 1988 and Fenton 2003 were respectively 3.8% and 6.1% for newborns younger than 37 weeks, 17.8% and 4.4% for newborns older than 37 weeks. Conclusion The assessment results of the two growth reference were different.The relevance ratio of SGA newborns aged younger than 37 weeks and LGA newborns aged older than 37 weeks were higher when using the China 1988, while the relevance ratio of LGA for newborns younger than 37 weeks and SGA for newborns older than 37 weeks were higher when using the Fenton 2003.It had illustrated that the Fenton 2003 would suitable for the contemporary newborns by comparing the newborns' birth weight.

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newborns / gestational age / birth weight / growth reference

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ZHANG Ya-qin, GAO Cai-yun, ZENG Ting, YAN Ai-xia, LI Hui.. Comparison of two neonatal growth reference.[J]. Chinese Journal of Child Health Care. 2014, 22(8): 799-802 https://doi.org/10.11852/zgetbjzz2014-22-08-05

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