Estimated proportions of SUDs by age and race/ethnicity are presented in Figure 2. Prevalence of disorders generally declined with age for all three racial/ethnic groups for AUD, TUD, and CUD. Prevalence of AUD peaked in the mid-twenties, with White participants (peak 32%) having higher rates than Black (23%) and Latino (23%) participants. This difference was significant for Latino compared to White participants until about age 60, and for Black compared to White participants until age 33. From ages 33 to 60 there were no significant differences between Black and White participants, and Black participants had higher AUD rates than White participants in late midlife (59–68). TUD peaked around age 27 for White (33%), 34 for Black (24%) and 27 for Latino (15%) participants. Latino participants had lower prevalence of TUD than Black and White participants at all ages. A crossover effect was observed between Black and White participants at around age 60; White participants had significantly higher rates than Black participants until age 56, and Black participants had higher rates than White participants after age 64. Prevalence of CUD was
