Updated gestational age specific birth weight, crown-heel length, and head circumference of Chinese newborns

Fok, Tai Fai; So, Hung‐Kwan; Wong, Eric; Ng, Pak Cheung; Chang, Allan; Lau, Joseph T. F.; Chow, C. L.; Lee, W. H.

doi:10.1136/fn.88.3.f229

Cited by 96 publications

(82 citation statements)

References 34 publications

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“…These factors may explain, to some extent, the larger HC observed in infants born to mothers with higher socioeconomic status. The HCs of males were observed to be larger than those of females in both preterm and term infants, and these results in male newborns were similar to the results reported in previous studies 10, 11,12,13,14,15,16,17,18,19,20,21,22,23,24 . Whitehouse et al 25 measured free testosterone levels in the umbilical cord blood and demonstrated that these levels were inversely 26 argued that increased intracranial volume is associated with a proportional increase in gray and white matter in male infants, whereas increased white matter is observed at a lower rate in females.…”

Section: Discussionsupporting

confidence: 81%

“…The exclusion criteria allowed us to obtain a sample of singleton, healthy newborns and to create standard growth curves that represented an estimate of optimal intrauterine growth. There is no doubt that constructing intrauterine growth curves for a particular population can reveal proper profiles and that this method can allow us to avoid potential errors that arise from classifying newborns based on curves that are not appropriate for evaluating a particular population group 16 . Revisiting the HC of newborns, our results corroborate previous findings regarding mean HC 15,17,18,19,20 .…”

Section: Discussionmentioning

confidence: 99%

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Revisiting head circumference of Brazilian newborns in public and private maternity hospitals

Amorim

Melo

2017

Arq. Neuro-Psiquiatr.

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In newborns, measurements of head circumference (HC) provide an indirect method of estimating head growth during the intrauterine and neonatal periods and during the first years of life. Head size reflects the growth of the brain and has been associated with body size, brain malformations, or merely be familial factors 1 . Dobbing, in 1974 2 , emphasized that brain growth does not occur in a linear and symmetrical fashion but is, instead, characterized by periods of increased cell growth. The human brain experiences two growth spurts. The initial growth spurt occurs from 12 to 18 weeks of gestation and is characterized by neuronal multiplication. The second growth spurt begins at 28 weeks of gestation and extends through birth until the third year of life. This growth is considered the major period of growth of the brain. During these growth spurt phases, the brain is more vulnerable and susceptible to the presence of both internal and external factors that can affect brain and body growth. Davies 3 argued that HC is more influenced by genetic factors than by weight and height and that it is less susceptible to maternal factors, such as diabetes, multipara, prior abortions, hypertension, malnutrition, or placental anomalies.Several studies have investigated HC in newborns and infants and correlated them with maternal, placental, and fetal factors 4 . In fact, previous studies 5 have reported correlations between HC and other anthropometric measurements or gestational age (GA). Up until now, few research groups in Brazil have studied HC or its correlation with GA and gender 6 . Therefore, the aim of this study was to revisit newborn HC Universidade Federal do Rio Grande do Norte, Departamento de Pediatria, Programa de Pós-Graduação em Ciências da Saúde, Natal RN, Brasil. ABSTRACTObjective: To revisit the head circumference (HC) of newborns in public and private maternity hospitals; to correlate our findings with the gestational age, gender, and type of delivery; and build and validate graphs and curves. Methods: This was a prospective study performed on healthy newborns. Differences in HC were analyzed as a function of gestational age, gender, the healthcare system and the type of delivery.Smoothed percentile curves were created using the least mean squares method. Results: Of the included newborns, 697 were born in private maternity hospitals and 2,150 were born in public maternity hospitals. In all, 839 were born by vaginal delivery, and 1,311 were born by cesarean delivery. At 37 to 42 weeks of gestation, male newborns had a larger HC than females. Infants born in private maternity and those born by cesarean delivery had a larger HC. Conclusion: An important result of the present study is that our analyses allowed us to generate curves and statistically-validated graphs that can be used in clinical neonatal practice.Keywords: neonatal head circumference; gestational age; gender; public and private maternity; newborn. Importante consequência deste estudo foi que os resultados permitiram a criação de curvas e g...

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Section: Discussionsupporting

confidence: 81%

Section: Discussionmentioning

confidence: 99%

Revisiting head circumference of Brazilian newborns in public and private maternity hospitals

Amorim

Melo

2017

Arq. Neuro-Psiquiatr.

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“…Hong Kong and Singapore have adopted their own local reference charts for infant growth monitoring. 26,27 On the other hand, a Turkish study 28 reported no disparity in their infant head circumference percentile when compared to Belgian and American infant head circumference percentiles at birth. The United States adopts the WHO standard for child growth from 0 to 24 months, and the subsequent growth is referred to the CDC growth chart for up to 59 months.…”

Section: Discussionmentioning

confidence: 99%

Trend of head circumference as a predictor of microcephaly among term infants born at a regional center in Malaysia between 2011-2015

Sutan¹,

Yeong²,

Mahdy³

et al. 2018

RRN

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“…Length: Length is widely used for evaluation of prenatal growth and identification of infants requiring detailed assessment and close monitoring during neonatal period. 7 Crown heel length has been studied by many authors in our country (Table 12). From our study, we find that body length is less affected than body weight by intrauterine malnutrition and is a better guide to fetal age than the later as it has been said in the literature.…”

Section: Discussionmentioning

confidence: 99%

Anthropometric measurements of newborns

Shastry

Bhat

2015

Int J Contemp Pediatr

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Updated gestational age specific birth weight, crown-heel length, and head circumference of Chinese newborns

Cited by 96 publications

References 34 publications

Revisiting head circumference of Brazilian newborns in public and private maternity hospitals

Revisiting head circumference of Brazilian newborns in public and private maternity hospitals

Trend of head circumference as a predictor of microcephaly among term infants born at a regional center in Malaysia between 2011-2015

Anthropometric measurements of newborns

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