Comparison of the INTERGROWTH-21st standard and a new reference for head circumference at birth among newborns in Southern China

Xiao, Wan-Qing; Zhang, Lifang; He, Jianxing; Shen, Shi‐Li; Funk, Anna; Lu, Jinhua; Wei, Xu-Hong; Yu, Jia-Kuo; Yang, Li; Li, Fang; Xia, Huimin; Qiu, Xiu

doi:10.1038/s41390-019-0446-0

Cited by 5 publications

(4 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As head circumference (HC) measurement is not routinely collected and recorded in clinical practice in China, a surveillance study for HC at birth was introduced in February 2017 in four hospitals in Guangzhou, China. The four hospitals were selected using a cluster sampling from 13 municipal and district-level Maternal and Child Care Service Centers in Guangzhou, including two municipal tertiary healthcare centers (two campuses of Guangzhou Women and Children’s Medical Center), one district-level tertiary centers (Huadu Maternal and Child Care Service Center) and one district-level secondary centers (Liwan Maternal and Child Care Service Center), located in the central, north and west areas of Guangzhou, China, respectively [ 22 ]. GWCMC provides services to pregnancies from all 11 districts of the city.…”

Section: Methodsmentioning

confidence: 99%

Prevalence of congenital microcephaly and its risk factors in an area at risk of Zika outbreaks

Shen

Xiao

Zhang

et al. 2021

BMC Pregnancy Childbirth

Self Cite

View full text Add to dashboard Cite

Background Prevalence of neonatal microcephaly in populations without Zika-epidemics is sparse. The study aimed to report baseline prevalence of congenital microcephaly and its relationship with prenatal factors in an area at risk of Zika outbreak. Methods This study included singletons born after 24 gestational weeks in 2017–2018 at four hospitals in Guangzhou, China. Microcephaly was defined as a head circumference at birth >3SD below the mean for sex and gestational age. Prevalence of microcephaly was estimated by binomial exact method. Multivariable logistic regression was used to examine the associations of microcephaly with prenatal factors. The population attributable fraction (PAF) for associated risk factors was calculated. Results Of 46,610 live births included, 154 (3.3, 95% CI 2.8–3.9 per 1000 live births) microcephalies were identified. Maternal hepatitis B virus carriers (HBV, OR 1.80, 95% CI 1.05–3.10) and primipara (OR 2.68, 95% CI 1.89–3.81) had higher risk of having a microcephalic baby. Higher prevalence of microcephaly was observed in women who had premature labor (OR 1.98, 95% CI 1.17–3.34) and had a baby with fetal growth restriction (OR 16.38, 95% CI 11.81–22.71). Four identified factors (HBV, primiparity, preterm labor, and fetal growth restriction) contributed to 66.4% of the risk of microcephaly. Conclusions The prevalence of microcephaly in Guangzhou was higher than expected. This study identified four prenatal risk factors that, together, contributed to two-thirds of the increased risk of microcephaly. This is the first reported association between maternal HBV carrier status and microcephaly.

show abstract

Section: Methodsmentioning

confidence: 99%

Prevalence of congenital microcephaly and its risk factors in an area at risk of Zika outbreaks

Shen

Xiao

Zhang

et al. 2021

BMC Pregnancy Childbirth

Self Cite

View full text Add to dashboard Cite

show abstract

“…Meanwhile, the exclusion criteria were as follows: twin or multiple; assisted reproduction; severe congenital malformations and genetic metabolic diseases at birth; foreigners whose parents were non-Chinese; maternal height < 145 cm; maternal age < 18 years, or > 40 years; mothers who had sustained smoking, alcoholism, and/or drug dependence during pregnancy; mothers who had taken some adrenocortical hormones, or immunosuppressants continuously for >1 month during pregnancy; mothers had severe anemia (hemoglobin <60 g/L), diabetes, preeclampsia, eclampsia, hyperthyroidism or hypothyroidism, heart and kidney insufficiency, or chronic hypertension during pregnancy. [5]…”

Section: Study Subjectsmentioning

confidence: 99%

The growth rates and influencing factors of preterm and full-term infants: A birth cohort study

Xiong¹,

Zhang²,

Jin³

et al. 2022

Medicine

View full text Add to dashboard Cite

This study aimed to explore the growth rates and influencing factors of the length and weight of preterm and full-term infants in the urban areas of Hubei province to provide a reference for child health and related clinical fields. A birth cohort study was used to analyze the growth rates and influencing factors of the length and weight of preterm and full-term infants using a multivariate regression analysis. The growth rates of the length and weight of preterm infants were significantly lower than those of full-term infants from birth to 3 months of age (P < .05), and gradually caught up to the level of full-term infants after 3 months of age (P > .05). Meanwhile, there were some influencing factors that had significant differences by their contribution to the growth rates of the length and weight of preterm and full-term infants. This study proposed that perinatal factors were attached more importance to the growth rates of preterm infants in the urban areas of Hubei province.

show abstract

“…Due to social development and improvements in medical technology and healthcare services [ 21 , 22 ], it is suggested that these standards should be updated. In addition, national or regional monitoring data have demonstrated that there are differences in birth weight [ 22 , 23 ] or head circumference [ 24 ] between Chinese and other populations. Therefore, the National Health Commission of China organized a special national study to update the birth size charts by gestational age.…”

Section: Introductionmentioning

confidence: 99%

Comparison of updated birth weight, length and head circumference charts by gestational age in China with the INTERGROWTH-21st NCSS charts: a population-based study

Zhang

Zong

et al. 2022

World J Pediatr

View full text Add to dashboard Cite

Background INTERGROWTH-21st Newborn Cross-Sectional Study (NCSS) charts were established and recommended for global application. However, whether one international reference is appropriate for all populations is still unclear. We aim to compare the updated Chinese birth size charts by gestational age with INTERGROWTH-21st NCSS charts. Methods A cross-sectional survey was carried out, and the birth weight, length and head circumference of 24,375 infants born after uncomplicated pregnancies at gestational age ranging from 24+0 to 42+6 weeks were measured in 13 cities in China from 2015 to 2018. Growth charts were constructed. The measurements of all these infants were evaluated by the methods of calculating their Z scores using the INTERGROWTH-21st standards. The prevalence of small for gestational age (SGA) and large for gestational age (LGA) based on birth weight was analyzed using Chinese charts and INTERGROWTH-21st charts. Results The mean Z scores were 0.10 for birth weight, 0.35 for length and − 0.02 for head circumference. Compared to the INTERGROWTH-21st charts, the Chinese birth weight percentile curves were higher except for the 90th percentile at 29–37 weeks gestational age, and the length percentile curves were higher after 33 weeks gestational age, while the 10th percentile of the head circumference was lower and the other percentiles were similar. The prevalence of SGA was 10.1% [95% confidence interval (CI) = 9.7%–10.5%] using the Chinese birth weight chart and 6.5% (95% CI = 6.2%–6.8%) using the INTERGROWTH-21st birth weight chart. The prevalence of LGA was 9.9% (95% CI = 9.5%–10.2%) and 8.2% (95% CI = 7.9%–8.6%) using the Chinese and INTERGROWTH-21st birth weight charts, respectively. Conclusions Chinese birth size charts based on infants born after uncomplicated pregnancies were different from the INTERGROWTH-21st charts. Differences in the classification of newborns by the two charts should receive attention, and whether the application of INTERGROWTH-21st in Chinese newborns will lead to misclassification needs to be validated in future clinical practice.

show abstract

Comparison of the INTERGROWTH-21st standard and a new reference for head circumference at birth among newborns in Southern China

Cited by 5 publications

References 33 publications

Prevalence of congenital microcephaly and its risk factors in an area at risk of Zika outbreaks

Prevalence of congenital microcephaly and its risk factors in an area at risk of Zika outbreaks

The growth rates and influencing factors of preterm and full-term infants: A birth cohort study

Comparison of updated birth weight, length and head circumference charts by gestational age in China with the INTERGROWTH-21st NCSS charts: a population-based study

Contact Info

Product

Resources

About