Path Analysis of Socioeconomic Correlates of County Infant Mortality Rates

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Abstract
Relationships between selected socioeconomic characteristics of counties and infant mortality rates are examined. There are two research objectives: to determine the extent to which low family income, low education, sound housing, and the percentage of blacks “directly” and “jointly” relate to neonatal and postneonatal mortality rates; and to determine the degree to which a zero-order correlation between a given socioeconomic measure and general infant mortality is transmitted by neonatal and postneonatal mortality rates, respectively. Data corresponding to 2237 counties in the United States are analyzed by path analysis. Results show that the percentage of blacks and low education are two variables which have appreciable direct effects on both components of infant mortality. These two factors are also responsible in large measure for gross associations between low family income, sound housing, and rates of infant loss. On the basis of this study it is estimated that approximately two-thirds of the zero-order correlation between a given county measure of socioeconomic status and infant mortality occurs through the postneonatal component. Implications of these findings are discussed.