Changes in drinking days among United States adults during the COVID-19 pandemic.

"Declaration of interests All authors have completed the ICMJE uniform disclosure form at www.icmje.org/coi_disclosure.pdf and declare: J.T., F.K., and E.A.S. report grants from National Science Foundation during the conduct of the study; J.T. also reports grants from Johns Hopkins Alliance for a Healthier World, Capital Group during the conduct of the study; no other relationships or activities that could have appear to have influenced the submitted work. The manuscript's guarantor affirms that this manuscript is an honest, accurate, and transparent account of the study being reported; that no important aspects of the study have been omitted; and that any discrepancies from the study as planned (and, if relevant, registered) have been explained."

"The Understanding America Study is funded from several sources, including the Social Security Administration and the National Institute on Aging (5U01AG054580). The survey that collected alcohol use and COVID‐19 related data used in this paper was funded by the Center for Economic and Social Research at the University of Southern California and received substantial support from the Bill and Melinda Gates Foundation. Work on the current manuscript was also supported by a RAPID grant from the National Science Foundation (2028683) and by a Capital Group COVID‐19 Response Fund Grant. C.D.N. was supported by the National Institute on Drug Abuse Drug Dependence Epidemiology Training Program (T32DA007292). K.E.R. was supported by the National Institute of Mental Health Mental Health Services and Systems Training Program (5T32MH109436‐03) and by a Doctoral Foreign Study Award from the Canadian Institutes of Health Research. C.B.V.’s participation in this research was made possible through an NIH/NIAAA Ruth Kirschstein Postdoctoral Research Fellowship (F32AA025816). J.C.K.’s participation in this research was supported by the National Institute on Alcohol Abuse and Alcoholism (K01AA026523)."