“…We included several self-reported independent variables in the analysis: (1) age at the time of survey completion (18-39 or 40-64 years), (2) self-reported sex (male or female), (3) marital status (married/living with a partner, divorced/separated/widowed, or never married), (4) education (some college or less or Bachelor's degree or higher), (5) poverty level, defined by the ratio of family income to the poverty threshold set by the US Census Bureau for the year (<100% [high poverty], 100%-199% [middle poverty], or ≥200% [low poverty]), (6) insurance status (uninsured, public, or private), (7) number of self-reported chronic health conditions, including arthritis, cardiovascular disease, pulmonary disease, diabetes, high blood pressure, liver disease, and cerebral stroke (none, one, two, or more), (8) alcohol use (lifetime abstainer, former drinker, or current drinker), and (9) cigarette smoking (never smoker, former smoker, or current smoker).…”