Fig. 5: Percentage of HCV-related visits involving substance-use disorder (SUD) stratified by birth cohort.
From: Sociodemographic disparities in Hepatitis C care utilization and testing in the United States

Bars show the percentage of visits with SUD within each cohort; error bars represent 95% confidence intervals derived from survey-weighted variance estimation. Higher SUD prevalence was observed among younger birth cohorts. n denotes unweighted visit counts (before 1945 n = 42; 1945–1965 n = 561; 1965–1985 n = 185; 1985–2005 n = 44).