Abstract
Background
This study aims to explore the relationship between social vulnerability (SoVI)indicators (race/ethnicity, population structure, socioeconomic status, housing structure, and access/functional needs) with low birth weight (LBW) and preterm delivery (PTD) rates across the Southeastern United States.
Methods
Annual low birth weight and premature birth rates for all counties were collected between 2000 and 2015. LBW and PTD were recoded into two categories below (0) and above (1) the annual national average for each year. Multinomial logistic regression (MLR) was employed to conduct regression analysis to investigate the relationship.
Results
Twenty-six and twenty-four different social vulnerability indicators were influential in predicting low birth weight rates and preterm delivery across the SE United States from 2005–2015, respectively. Racial and ethnic variables were among the most frequent influential social vulnerability indicators of low birth weights. Like race and ethnicity, counties with low and medium house values have a higher likelihood of low LBW compared to counties with higher house values. Unlike LBW, race and ethnic characteristics influence PTD rates across the study area in different ways. Whereas LBW rates are driven up in counties with low/medium Hispanic populations compared to high percentage counties, PTD is more strongly associated with Black communities. Further, population structure and socioeconomic status indicators provide the most robust indication of counties more likely to have higher PTD than the national average.
Conclusion
Influential variables point toward a dire need to comprehensively understand the links between social vulnerability and LBW and PTD. Moving toward a comprehensive view of social vulnerability borne out of the hazards literature provides a more robust understanding of the drivers of adverse birth outcomes that has rarely been addressed in the literature.
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