A revised version of the Timeline Followback procedure (TLFB) (Sobell and Sobell, 1992) assessed lifetime history of alcohol use and drinking patterns (i.e., frequency, quantity, and density of alcohol consumption), including every phase from when subjects first started drinking at least once per month to the present, including all periods of sobriety. A standard drink was defined as one beer or wine cooler, one glass of wine, one 1.5-ounce shot of liquor (alone or in a mixed drink).
