MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Most of what we know about the time course of drinking too much (at-risk use) is from people in treatment or special groups and not adults in the US population at large. That’s why we did this study. We need to know how often at-risk drinking persists, how often it resolves, and how often it appears de novo.
Risky drinking means exceeding limits that are associated with health consequences. It includes people with an alcohol use disorder but the vast majority of people drinking risky amounts do not have a disorder, they are simply drinking amounts that can harm their health. Even low amounts can harm health (e.g. breast cancer risk increases at <1 drink a day) but substantial increases in risk occur over 7 in a week on average (for women, and 14 for men) or >5 for men (>4 for women) on an occasion. The latter are associated with acute consequences (e.g. injury, unwanted sex), and the former with chronic conditions (e.g. cirrhosis). People should be aware of their risks and then they can make choices about what risks they want to take (and for those with a disorder, they may need help with those choices and help changing behavior like treatment).
The main findings were….that 3 years later, 3/4ths of adults drinking risky amounts were still doing so. But importantly, a quarter had stopped drinking risky amounts. It is important to know that things change. One factor associated with that positive change was having kids—presumably a positive social change even if stressful. Of those adults not drinking risky amounts when first interviewed, 15% started doing so 3 years later. Again having children was protective but the main factor associated with starting was young age, particularly those who became of legal drinking age. Despite the fact that youth may be able to access alcohol illegally, this finding confirms that the drinking age of 21 in the US does in fact restrict access, and that turning 21 increases use and risky use by making alcohol more accessible. Continue reading