A plot of the annual estimates for prevalence of past year (or past month for BRFSS) alcohol use for each survey is presented in Figure 1A with trend lines derived from log-binomial regression analyses as described in the Methods section. The individual and meta-analytic regression parameter estimates describing trends in prevalence for the full population and for each specific demographic group are shown in Figure 2 in forest-plot format; regression coefficient estimates and standard errors are tabulated in Supplementary Table 2. Those estimates were converted to parameters describing the average 10-year change and these are summarized in Supplementary Table 3. Prevalence estimates for years 2002 and 2013 for each survey and each demographic group are provided in Supplementary Table 4 to provide readers with baseline prevalence and reference points to gage the magnitude of observed absolute change within each survey.
