Association between blood manganese level during pregnancy and birth size: The Japan environment and children's study (JECS)

Abstract

A low blood Mn level during pregnancy or a high blood Mn level during the 3rd trimester was associated with a lower birth weight and increased risk of SGA in male infants, but not in female infants. A low blood Mn level was found to correlate slightly with a small head circumference among infants of both sexes.