[Effect of lead exposure in prenatal and postnatal duration on infant growth].

The blood lead (PbB) levels of pregnant women and their babies were followed up since the third month of pregnancy until their babies were 2 years old. The general condition of delivery, family history of the pregnant women, feeding and development of infants were investigated. Prenatal and postnatal PbB levels and their effects on infant growth were analysed. The result showed a significant negative correlation of PbB level of pregnant women near delivery, and in umbilical cord with the growth of infants. Multiple regression analysis showed a negative correlation between PbB level and height, weight of infant at 1 and 2 years old.