Illustration of the steps taken in exposure assessment for the primary analysis in this study. The 34 eastern US states/districts shown here are: Alabama, Arkansas, Connecticut, Delaware, the District of Columbia, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Mississippi, Missouri, New Hampshire, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, Tennessee, Texas, Vermont, Virginia, West Virginia, and Wisconsin. County population mean centers are based on the 2010 US Census. Storm tracks are based on the National Hurricane Center’s revised Atlantic hurricane database (HURDAT2).