For all analyses, we estimated outcome prevalence for each survey administration for the full population and by demographic groups, and examined overall and demographic-specific trends for each outcome. Demographics included sex, race/ethnicity, age, and educational attainment. Recoded variable definitions followed those used by Grant et al (Grant et al., 2017) except in the case of age, for which we divided the samples into the following groups: 18–29, 30–49, 50–64, and 65 and older. We divided the samples this way because single-year age groups are not available in public-use NSDUH files, so the available NSDUH age recodes were applied to other surveys. Race/ethnicity was categorized as White, Black, Native American (including Alaskan Native), Asian/Pacific Islander—all non-Hispanic, and Hispanic of any race. NHANES did not include “Native American” as a response option, so prevalence estimates for this group are not included for NHANES. For the NAS, because of a survey design change eliminating oversampling of the least populated states, the estimates for Native American/Alaskan Natives for the most recent NAS are much lower than estimates for previous years. Therefore, this group is
