Analysis of the birth defects among 61 272 live born infants in Beijing.
OBJECTIVE
To investigate the birth defect condition in Haidian district of Beijing city, 61,272 live-born infants who were delivered in Haidian Maternal and Child Health Hospital from 2003 to the March of 2009 are analyzed.


METHODS
Data was collected from the hospital's medical records and from the birth defect surveillance.


RESULTS
Among the newborns studied, 1 076 were found having birth defect (17.56 per thousand). The most common birth defects are congenital heart defect, followed by dysmorphosis of external ear, polydactyly, hypospadia, cleft lip and palate. In addition, three birth defects that are not included in the birth defect surveillance list were enorchia, renal agenesis and giant hemangioma. The birth defect rates of preterm and small for gestational age infants are significantly higher than it of the term infants. The birth defect patterns for these two types of abnormal infants are distinct.


CONCLUSIONS
We have determined the pattern of birth defects in Beijing, which may help in policy-making regarding the prevention and intervention of birth defects.
Li
Ying
Y
Haidian Maternal and Child Health Hospital, Beijing 100080, China.
Liu
Xiao-hong
XH
Wang
Fen-yan
FY
Zhao
Xin-liang
XL
Zhang
Xi
X
Zhang
Yun-ping
YP
D002681:China / Q000453:epidemiology; D000013:Congenital Abnormalities / Q000453:epidemiology*; D004431:Ear, External / Q000002:abnormalities*; D005260:Female; D005385:Fingers / Q000002:abnormalities; D006330:Heart Defects, Congenital / Q000453:epidemiology*; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D017689:Polydactyly / Q000453:epidemiology; D015995:Prevalence