A prospective study of 3080 Filipino mothers and non-twin births in 33
communities is used to study the determinants of mortality in week 1
postpartum. The results show significant nonlinear birth weight effect
s and the importance of environmental contamination, particularly for
infants born by traditional methods at home, and several other interme
diate and underlying determinants of perinatal mortality. The pathways
through which important sociodemographic factors affect perinatal mor
tality are also presented.