Growth reflects the general condition of society,and is a measure of the nutritional and hygienic status of a population[1,2].Nutrition is one of the most important components of children’s well-being[3].The Chinese ...Growth reflects the general condition of society,and is a measure of the nutritional and hygienic status of a population[1,2].Nutrition is one of the most important components of children’s well-being[3].The Chinese government attaches great importance to children’s health and development,with a clear statement and consistent practice for“Children are the future and hope of the motherland”.展开更多
Background INTERGROWTH-21 st 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 un...Background INTERGROWTH-21 st 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-21 st 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-21 st 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 INTER-GROWTH-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.展开更多
Background In China,as the social transformation and economic development from 1985 to 2015,children's feeding pattern has undergone some changes.So we aimed to analyze the secular trend on feeding patterns of cit...Background In China,as the social transformation and economic development from 1985 to 2015,children's feeding pattern has undergone some changes.So we aimed to analyze the secular trend on feeding patterns of city children in China.Methods All data were from a series of national survey which implemented once every 10 years in China from 1985 to 2015.We use same indexes to evaluate the feeding pattern of children in these four surveys.Results From 1985 to 2005,the exclusive breastfeeding rates in infants under 6 months of age decreased,especially in suburban areas decreased by 17.7%;the continuous breastfeeding rate of 1-year-old children in suburban area decreased from 60.1 to 27.6%.However,from 2005 to 2015,the exclusive breastfeeding rates under 6 months of age increased by 16.0% in urban areas and 5.9% in suburban areas;the continuous breastfeeding rate of 1-year-old children in urban increased from 17.0 to 36.0%.The overall feeding rate of complementary food in infants under 6 months of age declined from 1985 to 2015;the average age at introduction of all complementary foods was around 6 months of age in 2015.Conclusions There is an obvious trend on feeding pattern of Chinese children.From 1985 to 2005,the breastfeeding rate decreased,the duration time of breastfeeding was shortened and the age at introduction of complementary food was advanced.From 2005 to 2015,the breastfeeding rate increased,the duration time of breastfeeding was prolonged,and the age at introduction of complementary food was postponed.展开更多
文摘Growth reflects the general condition of society,and is a measure of the nutritional and hygienic status of a population[1,2].Nutrition is one of the most important components of children’s well-being[3].The Chinese government attaches great importance to children’s health and development,with a clear statement and consistent practice for“Children are the future and hope of the motherland”.
基金This project was supported by the National Health Commission of the People's Republic of China(No.2015-42).
文摘Background INTERGROWTH-21 st 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-21 st 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-21 st 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 INTER-GROWTH-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.
文摘Background In China,as the social transformation and economic development from 1985 to 2015,children's feeding pattern has undergone some changes.So we aimed to analyze the secular trend on feeding patterns of city children in China.Methods All data were from a series of national survey which implemented once every 10 years in China from 1985 to 2015.We use same indexes to evaluate the feeding pattern of children in these four surveys.Results From 1985 to 2005,the exclusive breastfeeding rates in infants under 6 months of age decreased,especially in suburban areas decreased by 17.7%;the continuous breastfeeding rate of 1-year-old children in suburban area decreased from 60.1 to 27.6%.However,from 2005 to 2015,the exclusive breastfeeding rates under 6 months of age increased by 16.0% in urban areas and 5.9% in suburban areas;the continuous breastfeeding rate of 1-year-old children in urban increased from 17.0 to 36.0%.The overall feeding rate of complementary food in infants under 6 months of age declined from 1985 to 2015;the average age at introduction of all complementary foods was around 6 months of age in 2015.Conclusions There is an obvious trend on feeding pattern of Chinese children.From 1985 to 2005,the breastfeeding rate decreased,the duration time of breastfeeding was shortened and the age at introduction of complementary food was advanced.From 2005 to 2015,the breastfeeding rate increased,the duration time of breastfeeding was prolonged,and the age at introduction of complementary food was postponed.
