title: Birth weight reference percentiles for Chinese.
abstract: OBJECTIVE
  To develop a reference of population-based gestational age-specific birth weight percentiles for contemporary Chinese.
  
  
  METHODS
  Birth weight data was collected by the China National Population-based Birth Defects Surveillance System. A total of 1,105,214 live singleton births aged ≥28 weeks of gestation without birth defects during 2006-2010 were included. The lambda-mu-sigma method was utilized to generate percentiles and curves.
  
  
  RESULTS
  Gestational age-specific birth weight percentiles for male and female infants were constructed separately. Significant differences were observed between the current reference and other references developed for Chinese or non-Chinese infants.
  
  
  CONCLUSIONS
  There have been moderate increases in birth weight percentiles for Chinese infants of both sexes and most gestational ages since 1980s, suggesting the importance of utilizing an updated national reference for both clinical and research purposes.
authors.affiliation: National Center for Birth Defects Monitoring, West China Second University Hospital of Sichuan University, Chengdu, People's Republic of China; Key Laboratory of Obstetrics & Gynecology and Pediatric Diseases and Birth Defects of the Ministry of Education, West China Second University Hospital of Sichuan University, Chengdu, People's Republic of China.
authors.forename: Li
authors.initials: L
authors.lastname: Dai
authors.affiliation: National Center for Birth Defects Monitoring, West China Second University Hospital of Sichuan University, Chengdu, People's Republic of China.
authors.forename: Changfei
authors.initials: C
authors.lastname: Deng
authors.affiliation: Obstetric and Gynecologic Department, West China Second University Hospital of Sichuan University, Chengdu, People's Republic of China.
authors.forename: Yanhua
authors.initials: Y
authors.lastname: Li
authors.affiliation: National Center for Birth Defects Monitoring, West China Second University Hospital of Sichuan University, Chengdu, People's Republic of China; Key Laboratory of Obstetrics & Gynecology and Pediatric Diseases and Birth Defects of the Ministry of Education, West China Second University Hospital of Sichuan University, Chengdu, People's Republic of China.
authors.forename: Jun
authors.initials: J
authors.lastname: Zhu
authors.affiliation: National Center for Birth Defects Monitoring, West China Second University Hospital of Sichuan University, Chengdu, People's Republic of China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Mu
authors.affiliation: National Center for Birth Defects Monitoring, West China Second University Hospital of Sichuan University, Chengdu, People's Republic of China; Key Laboratory of Obstetrics & Gynecology and Pediatric Diseases and Birth Defects of the Ministry of Education, West China Second University Hospital of Sichuan University, Chengdu, People's Republic of China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Deng
authors.affiliation: Key Laboratory of Obstetrics & Gynecology and Pediatric Diseases and Birth Defects of the Ministry of Education, West China Second University Hospital of Sichuan University, Chengdu, People's Republic of China.
authors.forename: Meng
authors.initials: M
authors.lastname: Mao
authors.affiliation: National Center for Birth Defects Monitoring, West China Second University Hospital of Sichuan University, Chengdu, People's Republic of China.
authors.forename: Yanping
authors.initials: Y
authors.lastname: Wang
authors.affiliation: National Center for Birth Defects Monitoring, West China Second University Hospital of Sichuan University, Chengdu, People's Republic of China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Li
authors.affiliation: Yale School of Public Health, Yale University, New Haven, Connecticut, United States of America.
authors.forename: Shuangge
authors.initials: S
authors.lastname: Ma
authors.affiliation: Yale School of Public Health, Yale University, New Haven, Connecticut, United States of America.
authors.forename: Xiaomei
authors.initials: X
authors.lastname: Ma
authors.affiliation: Yale School of Public Health, Yale University, New Haven, Connecticut, United States of America.
authors.forename: Yawei
authors.initials: Y
authors.lastname: Zhang
mesh_terms: D044466:Asian People; D001724:Birth Weight; D002681:China; D005260:Female; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D011159:Population Surveillance; D011247:Pregnancy; D012016:Reference Values