National WIC Association

Area-level poverty and preterm birth risk: a population-based multilevel analysis

DeFranco EA, et al. Area-level poverty and preterm birth risk: a population-based multilevel analysis. BMC Public Health. Sep 2008;8:316.

This study utilized a large population-based birth registry to estimate the independent effect of county-level poverty on preterm birth risk. The researchers found that high county-level poverty was significantly associated with preterm birth risk.