Fig. 3From: Evaluation of four gamma-based methods for calculating confidence intervals for age-adjusted mortality rates when data are sparseBoxplots of county-level coefficients of variation for the weights ui, by race and Hispanic origin. Boxplots of the coefficient of variation of the weights ui = wi/pi in the age-adjusted mortality rate R = ∑(wi/Pi) Di are presented by race and Hispanic origin, for 3147 US counties, using 1999–2019 aggregate dataBack to article page