We also used a number of demographic and clinical characteristics in our analyses, including gender, age (18–29, 30–39, 40–49, 50+ years), race/ethnicity (non-Hispanic white, non-Hispanic black, Hispanic, other), annual income (<$20,000, $20,000-$34,999, $35,000-$69,999, $70,000+), urban/rural setting, education (high school diploma or lower, greater than a high school diploma), marital status (married/living with partner, widowed/divorced/separated, never married), and health insurance (any, none).
