"Compared to teens in families with strong Family Ties, teens in families with weak Family Ties are:
"• Four times likelier to have tried tobacco;
"• Four times likelier to have tried marijuana; and
"• Almost three times likelier to have tried alcohol."

Source

Knowledge Networks and QEV Analytics, "National Survey of American Attitudes on Substance Abuse VX: Teens and Parents" (New York, NY: National Center on Addiction and Substance Abuse at Columbia University, August 2010), p. 3.
http://www.casacolumbia.org/a…