Prevalence estimates and standard errors for trends in drinking status as well as binge drinking among current drinkers were computed for 5-year age categories through age 80+ and 4 birth cohorts (<1925<1925–1935–1936–1945–1946–1954 [leading edge of baby boomer cohort]). Trends were examined using joinpoint regression and summarized as APC and AAPC as mentioned above. We also examined birth cohorts by age group, where only individuals falling within each age group during the study period (1997–2014) were considered to address confounding between birth cohort and age group; for example, individuals in the earlier birth cohorts are also older at any given point in time.
