Fig. 2From: The association of county-level socioeconomic factors with individual tobacco and alcohol use: a longitudinal study of U.S. adultsCounty socioeconomic disadvantage, 1992. Higher values represent higher levels of county socioeconomic disadvantage. For illustrative purposes, measures of county-level educational attainment, unemployment, and income were standardized with a mean of zero and standard deviation of one, and these three values were then summed to obtain the composite index shown here. Source: Authors’ calculations using publicly available data from the U.S. Bureau of Labor Statistics, the Bureau of Economic Analysis, and the Census BureauBack to article page