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. 2019 Apr 11;19:390. doi: 10.1186/s12889-019-6700-x

Table 1.

Health Outcomes of Interest, U.S. National Longitudinal Study of Youth, 1992–2012

Variable Type Survey Years Including Outcome
Binge drinking in last month Binary 1994, 2002, 2006, 2008, 2010, 2012
Typical number of drinks per day (zero for non-drinkers) Continuous 1994, 2002, 2006, 2008, 2010, 2012
Smoked in last month Binary 1992, 1994, 1998, 2008, 2010, 2012
Typical number of cigarettes per day (zero for non-smokers) Continuous 1992, 1994, 1998, 2008, 2010, 2012