Table 1 Variables used in this study to quantify socio-economic vulnerability index (SEVI).

From: A Place-based Assessment of Flash Flood Hazard and Vulnerability in the Contiguous United States

CategoriesVariablesInfluence on the Vulnerability
Demographic Socioeconomic StatusPoverty+
Per capita income
Median household value
Percentage of population aged 25 years or older with less than 12th grade education+
Percentage of households receiving social security+
Median gross rent
Percentage employment in extractive industries+
Percentage of households earning greater than US $200,000 annually
Percentage employment in service industry+
Percentage civilian unemployment+
Race and EthnicityPercentage Asian+
Percentage Black or African American+
Percentage speaking English as a second language with limited English proficiency+
Percentage Hispanic+
Percentage Native American+
AgeMedian age
Percentage of population under 5 years or 65 and older+
Percentage of population under 18 years old+
GenderPercentage female+
Percentage female participation in labor force+
Percentage female-headed households+
Housing and TransportationPeople per unit+
Percentage mobile homes+
Percentage of housing units with no cars+
Percentage of population living in nursing and skilled-nursing facilities+
Percentage renters+
Percentage unoccupied housing units
Industrial EconomyPrivate industries
Agriculture, forestry, fishing, and hunting
Transportation and food service
Accommodation and food service
Governmental
  1. The last column indicates the overall correlation of each variable to vulnerability (i.e. a positive sign means that increase in variable will increase SEVI, and vice versa).