Flores MW, Le Cook B, Mullin B, et al. - Researchers investigated relationships between opioid-related mortality and neighborhood-level risk factors via performing a cross-sectional study at Massachusetts, USA. Opioid-related (n = 3,089) and non-opioid-related premature deaths (n = 8,729) were identified using 2011-2014 Massachusetts death certificate data. As per outcomes, number of social associations per 10,000 and number of hospital beds per 10,000 were noted to be inversely correlated with opioid-related mortality, whereas percent living in poverty, food insecurity rate, number of federally qualified health centers, and per capita morphine milligram equivalents of hydromorphone were identified to have positive correlation with opioid-related mortality.